SIMOLIO SM-621D 2.4GHz Digital Wireless TV Speaker User Manual

SM-621D 2.4GHz Digital Wireless TV Speaker

2.4GHz Digital Wireless TV Speaker
with Optical & Analog Audio Input

User Manual
SM-621D

Sales & Support Email: support@simolio.com for NA/AU or support_uk@simolio.com for UK

Sales & Support Email: support@simolio.com for NA/AU or support_uk@simolio.com for UK

SM-621D
Thank you for choosing the SIMOLIO SM-621D Wireless TV Speakers. Please read this guide carefully and keep it in a safe place for future reference. If you need any further assistance, please contact our customer support team at: support@simolio.com (NA/AU) support_uk@simolio.com (UK) Response Time: 2-24h, excl. Holidays
Contents
Important Safety Instruction ………………………………………………. 01 Overview …………………………………………………………………………. 02 Features …………………………………………………………………………… 02 Product Diagram ……………………………………………………………….. 03 Package Contents ………………………………………………………………. 04 LED Indication ………………………………………………………………… 05 How to Use ……………………………………………………………………….. 05 1. Check Your TV/Audio Source Output Options before the Set up …….. 05 2. Turn on the Transmitter and Receiver ………………………………. 06
2.1 Power the Transmitter …………………………………………………… 06 2.2 Turn on the Transmitter …………………………………………………. 06 2.3 Power the Receiver ………………………………………………….. 07 2.4 Turn on the Receiver ………………………………………………….. 07 3. Connect the Transmitter to Your TV/Audio Source ……………………. 07 3.1 Digital Optical Connection …………………………………………….. 07 3.2 RCA Analog Connection ………………………………………………… 09 3.3 3.5mm/AUX Analog Connection ……………………………………… 10 3.4 Other Connections in Special Cases ………………………………….. 12 4. TONE Adjustment ………………………………………………………….. 14 5. Use Two Sets of SIMOLIO 2.4GHz Wireless TV Speakers……………….. Simultaneously in the Same House ………………………………………. 15 6. Other Uses …………………………………………………………………… 15 6.1 How to Use the Stethoscope Headset with the Speaker ………… 15 6.2 How to Use the Receiver as a Wired Speaker …………………… 15 7. Charge the Speaker ………………………………………………………… 16 Troubleshooting ……………………………………………………………….. 17 Limited Warranty …………………………………………………………….. 19 Technical Specifications …………………………………………………….. 20

SM-621D
IMPORTANT SAFETY INSTRUCTION
1. Please read this instruction manual carefully and completely before using the products. Keep this manual easily accessible at all times.
2. Always keep the product dry, and do not expose them to extreme temperatures.
3. The receiver must keep the minimum volume before switching the unit on. High volume may cause hearing damage to persons with normal hearing, especially to children.
4. Keep devices away from liquid. Before cleaning the product and its accessories, disconnect the transmitter from the power adapter, and use only a slightly damp cloth to clean the devices.
5. Use only the supplied power adapter.
6. Use the products with care and set them up on a stable surface of a clean, dust-free environment.
7. The unit may get hot during use. Ensure the unit has adequate ventilation.
8. Please put the product far away from microwave oven, mobile phones, WiFi router etc. to avoid unnecessary electronic wave interference.
9. Please switch off the transmitter and receiver after use, and pull out the power adapter from the wall socket when not using for a long time.
10. Only qualified person can provide services! Do not attempt to open the unit!
Pacemaker Safety:
CAUTION!
Before using this product with a pacemaker or other medical device, consult your physician or the manufacturer of your pacemaker or other medical device.
01

SM-621D
OVERVIEW
No lip-sync delay, no need to be upset and insulated by heavy headphones, no need to turn up TV voice loudly that may disturb your family. Simolio 2.4GHz Digital Wireless TV Speaker adopts the latest advanced Frequency Hopping Spread Spectrum (FHSS) tech, with strong anti-interference ability. It can bring the clear and crisp TV voice at your side, volume range can meet any hearing requirement, creating a comfortable individual listening environment, providing you more freedom to enjoy programs from TV or other audio devices wherever in the room or outdoors. You can even mute your TV, you will never worry about disturbing others in your family anymore.
The big dial knob with power ON/OFF and volume control in the center area of the receiver, makes you turn the volume up, down or power off by your fingertips easily.
Rechargeable and portable wireless speaker with handle, convenient to take anywhere. Big size appearance & acoustic chamber with powerful loudspeakers (2×5W).
FEATURES
1. Compatible with both digital optical and analog RCA/3.5mm audio output ports and suitable for almost all TVs and TV boxes on the market.
2. With the AUDIO OUT jack at the rear of receiver for connecting to a headset, you can turn an ordinary headset into a wireless TV headset with the volume control by the speaker’s big knob. With the special lightweight stethoscope headset we supplied, you can get more comfortable and private listening by muting TV.
3. With the AUDIO IN jack at the rear of receiver for connecting to an audio device like PC, MP3, Mobile Phone, iPad, etc., you can turn this receiver into a wired speaker.
4. Voice Highlighting Tech: our circuit will reduce background voice of TV, increase the dialogues, so that hard to hear words can easily stand out, making television dialogues easier to understand.
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SM-621D
5. Automatic Signal Control(ASC): our circuit will adjust the sudden change volume and make the output volume stable. It will avoid strong signal hurting the users’ listening.
6. Three levels of TONE control is specially designed for people who have different sound frequency sensitiveness. They can select TONE (Treble/Normal/ Bass) to find the optimum parameters, and hear the target audio source clearly. 7. Supported with the latest 2.4GHz Digital Automatic Frequency Hopping Spread Spectrum ( FHSS ) tech, you can have wireless freedom and crystal clear voice within a range of up to 100 feet.
8. The receiver will work continuously for 6 hours with the replaceable & rechargeable Li-battery.
9. Two power adapters available: one for the transmitter power supply, another for the speaker power and charge supply which is plugged in the wall outlet, no need taking the speaker back onto the charging cradle to charge
10. The receiver speaker will be powered off automatically when no signal is received for 10 minutes.
11. Built-in special circuit with short-circuit protection in the base for safety.
12. Memory foam ear tips: the stethoscope headset is installed with super- soft memory foam ear tips which can reduce earphone irritation and fatigue but not durable. We suggest to replace them every 30~60 days.
PRODUCT DIAGRAM

Receiver Front
Transmitter
03

Power ON/OFF &
Volume
LED Indicator
(Red & Green)
Charging Port LED Indicator
( Green)

Receiver Back

SM-621D

Battery Cover

Transmitter

Power IN Audio IN

Audio Out

TONE Treble/Normal/Bass

Power ON/OFF Power IN

Audio IN Optical / SPDIF IN

Package Contents

Receiver & Transmitter

Headset

Ø3.5mm audio cable

Optical fiber cable

RCA audio cable

Power adaptors

or

USA

UK

(two adapters)

(two adapters)

Manual
2.4GHz Digital Wireless TV Speaker with Optical & Analog Audio Input
User Manual
SM-621D Sales & Support Email: support@simolio.com for USA, or
support_uk@simolio.com for Europe

04

Quick guide

SM-621D

LED INDICATION

LED Indicator of Transmitter

LED Status

Transmitter Status

Bright green LED lighting steadily Working or Charging for speaker

Dark green LED lighting steadily Standby

Green LED blinking slowly

No audio signal input or signal is too weak

LED Indicator of Receiver LED Status
Green LED lighting steadily Green LED blinking slowly Red & Green LED lighting alternately Red LED blinking
Red LED lighting steadily
Red LED off

Receiver Status
Working
No audio in, transmitter is in standby or turned off Low power indication at wireless working status
Low power indication at wired working status Charging by transmitter base
Charging by power adapter
Charging full

HOW TO USE
1. Check Your TV/Audio Source Output Options before the Set up SM-621D is compatible with OPTICAL output, RCA (labeled “AUDIO OUT”) and AUX 3.5mm output.
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SM-621D

Jack Options

Digital Optical AUDIO OUT

RCA jacks labled
AUDIO OUT

OPTICAL AUDIO OUT

AUDIO OUT

L

R

Other RCA jacks(usually audio in)
AUDIO IN

AUX/3.5mm

6.35mm Digital Coaxial Phone jack AUDIO OUT

PHONE

COAXIAL

Natively supported?

(need extra 6.35mm (need extra digital to to 3.5mm adapter, analog converter, purchase separately) purchase separately)

Please refer

3.1

to Point

3.2

N/A

3.3

Fig 1-1

3.4

3.4

Note: · Three different audio cables included: digital optical cable, RCA cable and 3.5mm cable. In the end, only one of these cables is needed to complete the installation.
· If your audio source device has an optical audio out port, please connect SIMOLIO to this port preferentially. If not, you can also connect SIMOLIO to the RCA or AUX/3.5mm or other audio out port of the audio source device.

2.Turn on the Transmitter and Receiver

2.1 Power the Transmitter (Ref. Fig 2-1)

Plug the supplied AC adapter into a standard electrical outlet, plug the other

end of the AC adapter into the port labeled “DC 9V” on the back of the

transmitter.

Transmitter

Power adapter

Fig 2-2
2.2 Turn on the Transmitter (Ref. Fig 2-2) Slide OFF/ON switch to “ON” position.
06

Fig 2-1

SM-621D
2.3 Power the Receiver Two ways to power the receiver:
Battery chamber

Fig 2-3

Cover

Fig 2-4

1. Load the Li-battery into the battery chamber of the receiver with correct polarity and cover the battery case.(Ref. Fig 2-3) 2) Use the additional power adapter to power the receiver.(Ref. Fig 2-4) Note: please charge the battery for 3 hours before the first use.
   2.4 Turn on the Receiver
   Rotate the big Volume knob clockwise until you hear a short “click”.

3.Connect the Transmitter to Your TV/ Audio Source
Set the volume of the audio source to a level sufficient for people with normal hearing to clearly listen to the TV to ensure stable audio output. i.e. set the TV box VOL 30 % (Ref. Fig 3-1) & TV VOL 40% (Ref. Fig 3-2) For watching TV quietly without disturbing others, the right way is: Mute your TV by pressing the MUTE button on the remote control or choose any speaker option other than TV Speaker in the TV Sound Output settings.(Ref. Fig 3-3)
· The above settings may differ from various TVs.

Fig 3-1 TV box VOL 30 %

Fig 3-2 TV VOL 40 %

Mute Fig 3-3

3.1 Digital Optical Connection This part will instruct you on how to connect the SIMOLIO SM-621D

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SM-621D

transmitter to your television, satellite, or cable box using an optical digital audio cable.
· If you cannot get to the back of your TV and you only watch the programs through a fixed TV box (cable/satellite box/DVD etc.), you can also use these instructions to install the system to your TV box.
· Be aware that the base should be placed at least 4 feet away from your Router/ smart WiFi TV/TV sticks/WiFi TV box to avoid interference.

Step 1. Hook up SIMOLIO to the Optical Audio Out Port of the TV/other Audio Device

Fig 3-4

CAP

Remove the protective plastic caps from both ends of the optical digital audio cable.

Plug either end of the optical audio cable into the “Digital Audio Out (Optical)” port on the back of the TV. Plug the other end of the optical digital audio cable into the port on the back of the transmitter labeled “OPTICAL IN”.

OPTICAL

Digital Audio Out (Optical)

Fig 3-5

Optical Audio Cable

Step 2. TV Audio Format and TV Speaker Setting (use TV remote control) If you can not hear sound from your speaker after connecting:
· Ensure TV Audio Format is set to “PCM” or “Dolby/DTS” is OFF (This is IMPORTANT, Ref. Fig 3-6)

Settings

Audio Format

PCM Dolby Digital DTS DTS Neo 2:5

Speakers Internal speakers External speakers Headset

Fig 3-6

Fig 3-7

PS: for certain smart Samsung models, the TV is retaining separate settings for regular TV and internet TV setup. When you turn to the Smart Hub for Internet

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SM-621D
source, please use the TV remote to go to Settings > Sound > Expert Settings > Audio Format or Digital Output Audio Format, then select PCM. · Ensure your TV speaker is set to “External Speakers”. (Ref. Fig 3-7)
Notes: If your TV only support single sound out, the TV’s speakers will be either automatically muted when you plug something into an audio out port (Optical/ AUX/RCA, etc.) or they become disabled once you choose “External Speakers” as your TV’s audio output. It depends on TV circuit design.
For most TVs, the TV’s internal speakers and an external audio device can work simultaneously. Such as, for some newer LG TVs, when do optical audio connection, you can set the “Sound Out” to “Internal TV Speaker + Audio Out (optical)”. And for some newer Samsung TVs, you can enable this feature by selecting “TV Speaker” from the TV Sound Output lists.

• Setting menu may be different depending on different TV brands and models.
  3.2 RCA Analog Connection This Part is an alternative to 3.1 on page 8. This part will explain how to connect the SIMOLIO SM-621D transmitter to your television, satellite, or cable box using an RCA analog audio cable. · If you cannot get to the back of your TV and you only watch the programs through a fixed TV box (cable/satellite box/DVD etc.), you can also use these instructions to install the system to your TV box. · Be aware that the base should be placed at least 4 feet away from your Router/ smart WiFi TV/TV sticks/WiFi TV box to avoid interference.
  Step 1. Hook up SIMOLIO to the RCA Audio Out Port of the TV/other Audio Device
  Plug the red and white ends of the audio cable into the analog RCA Audio Out ports (red and white ports labeled “AUDIO OUT”) on the back of the TV. Plug the single end of the audio cable into the port labeled “AUDIO IN” on the back of the transmitter.

TV REAR

R AUDIO OUT L

AUDIO IN

Fig 3-8

RCA Audio Cable
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SM-621D

Step 2. TV Audio Out Checking and TV Speaker Setting (use TV remote control) If you can not hear sound from your speaker after connecting:
· Ensure use TV Red/White ports labeled “AUDIO OUT” or “OUTPUT”, other Red/White ports are incorrect. (Ref. Fig 3-9)
· Ensure your TV speaker is set to “External Speakers”. (Ref. Fig 3-10)

TV REAR

AUDIO OUT
R
L

COMPONENT IN VIDEO IN

Speakers Internal speakers External speakers Headset

SETTINGS
SOUND / AUDIO
ANALOG AUDIO OUT

FIXED VARIABLE

Fig 3-9

Fig 3-10

Fig 3-11

Notes: * If your TV only support single sound out, the TV’s speakers will be either automatically muted when you plug something into an audio out port (Optical/ AUX/RCA, etc.) or they become disabled once you choose “External Speakers” as your TV’s audio output. It depends on TV circuit design.
For most TVs, the TV’s internal speakers and an external audio device can work simultaneously. Such as, for some newer LG TVs, when do analog RCA audio connection, you can set the “Sound Out” to “Internal TV Speaker + Headphones”. And for some newer Samsung TVs, you can enable this feature by selecting “TV Speaker” from the TV Sound Output lists.

• Your TV’s analog audio settings may be set to “Variable” or “Fixed”. If you want to be able to control your TV volume level separate from your SIMOLIO SM-621D volume level, you will need to make sure your TV is set to “Fixed”.
  Contact your TV manufacturer for assistance. (Ref. Fig 3-11)

*Setting menu may be different depending on different TV brands and models.

3.3 3.5mm/AUX Analog Connection This part is an alternative to 3.1 and 3.2 on page 8-10. This part will explain how to connect the SIMOLIO SM-621D transmitter to your television, satellite, or cable box using a 3.5mm/AUX analog audio cable.

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SM-621D

· If you cannot get to the back of your TV and you only watch the programs through a fixed TV box (cable/satellite box/DVD etc.), you can also use these instructions to install the system to your TV box.
· If you connect the 3.5mm audio cable to the 3.5mm Audio Out port which is usually a Headphone port on your TV, your SIMOLIO SM-621D will still function properly, but the sound to your TV internal speakers will be muted. The port is usually labeled with an headphone icon.
· Be aware that the base should be placed at least 4 feet away from your Router/smart WiFi TV/TV sticks/WiFi TV box to avoid interference.
Step 1. Hook up SIMOLIO to the 3.5mm Audio Out Port of the TV/other Audio Device
Plug one end of the 3.5mm audio cable into the “Audio Out” port on the back of the TV. Plug the other end of the audio cable into the port labeled “AUDIO IN” on the back of the transmitter.

AUDIO IN

H/P or Audio Out

AUX/3.5mm Audio Cable
Fig 3-12
Step 2. TV Audio Out / TV Speaker Setting (use TV remote control) If you can not hear sound from your speaker after connecting:
· Ensure your TV speaker is set to “Headset”. (Ref. Fig 3-13) · Plug a wired headphone/earphone into the 3.5mm audio out port of the TV to test if you can hear the TV sound. (Ref. Fig 3-14)

Speakers Internal speakers External speakers Headset
Fig 3-13

H/P or Audio Out
L

94dB 8v5odluBme 75dB

a wired headphone/ earphone

Fig 3-14

11

SM-621D

Notes: * Your TV’s audio settings may be set to “Variable” or “Fixed”. We recommend that you set your audio settings to “Fixed” for better audio quality when using this installation option. If you want to be able to control your TV volume level separate from your SIMOLIO SM-621D volume level, you will need to make sure your TV is set to “Fixed”. Contact your TV manufacturer for assistance.

SETTINGS
SOUND / AUDIO
ANALOG AUDIO OUT

FIXED VARIABLE

Fig 3-15

• Setting menu may be different depending on different TV brands and models.

3.4 Other Connections in Special Cases

1. TV/Audio Source only has Digital Coaxial Audio Out port
   Step 1. Purchase a Digital to Analog Converter and Set up as Shown in Fig 3-16 If your TV/Audio Source only has a digital coaxial audio out port, you will need a digital to analog converter (DAC) for installation.

Digital to Analog Converter

COAXIAL IN

Digital Out Coaxial

R L
RCA OUT

wireless AUDIO IN transmitter

Fig 3-16
Step 2. TV Audio Format and TV Speaker Setting (use TV remote control) If you can not hear sound from your speaker after connecting:
· Ensure TV Audio Format is set to “PCM” or “Dolby/DTS” is OFF (This is IMPORTANT, Ref. Fig 3-17) PS: for certain smart Samsung models, the TV is retaining separate settings for regular TV and internet TV setup. When you turn to the Smart Hub for Internet source, please use the TV remote to go to Settings > Sound > Expert Settings > Audio Format or Digital Output Audio Format, then select PCM.
· Ensure your TV speaker is set to “External Speakers”. (Ref. Fig 3-18)

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SM-621D

Settings

Audio Format

PCM Dolby Digital DTS DTS Neo 2:5

Speakers Internal speakers External speakers Headset

Fig 3-17

Fig 3-18

· Take turns to test RCA connection and 3.5mm /AUX connection.

· Use a wired headphone/earphone to plug into the headset port or RCA output of the DAC to test if you can hear the TV sound. (Ref. Fig 3-19)

COAXIAL IN

Connect TV/ Cable box/ STB etc.

L

R L

RCA

OUT

Connect TV/ Cable box/
or STB etc.

COAXIAL IN
L
R L
H/P

94dB 8v5odluBme 75dB
94dB 8v5odluBme 75dB

RCA Audio Cable

3.5mm Audio Cable

Note:

Fig 3-19

Setting menu may be different depending on different TV brands and models.

2. If your TV/Audio Source’s Digital Optical Audio Out port is occupied by soundbar, you will need an optical splitter for installation.
   Step 1. Purchase an Optical Splitter and Set up as Shown in Fig 3-20

Digital Audio Out (Optical)

Optical splitter
Optical Fiber Cable
Sound Bar

Optical Fiber Cable
SM-621D (Transmitter)

Fig 3-20

Step 2. If you can not hear sound from your speaker after connecting, follow the part of 3.1 on page 8-9 to check your settings.

3. Use SIMOLIO SM-621D to your AV Receiver with 6.35mm PHONE jack

13

SM-621D

Step 1. Purchase a 6.35mm to 3.5mm Adapter and Set up as Shown in Fig 3-21 SM- 621D is not compatible with ANY RCA(L/R) ports on your AV Receiver, ONLY use the BIG 6.35mm PHONE OUT on front side of your AV Receiver with the 6.35mm to 3.5mm adapter (purchase separately).
AV Receiver

AUDIO IN

Phones

6.35mm Audio adapter (purchase separately)

6.35mm Phone jack

Fig 3-21

3.5mm Audio Cable

Step 2. Check the Performance of the AV Receiver’s Audio Output as Shown in Fig 3-22
If you can not hear sound from your speaker after connecting:

· Use the 6.35 to 3.5mm converter to plug a wired headphone/earphone into the port on AV receiver to check whether the sound is normal.

AV Receiver

Phones

L

94dB 8v5odluBme 75dB

6.35mm Audio adapter

6.35mm Phone jack

(purchase separately)

Fig 3-22

3.5mm Audio Cable

4. TONE Adjustment

Turn on the receiver and set the VOLUME to your required level.

TONE (Treble / Normal / Bass)

Select TONE (Treble / Normal / Bass)

to hear more clearly. Select Treble to

enhance female voice and child’s voice,

select Bass to enhance male voice.

Fig 4-1

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SM-621D

5.Use Two Sets of SIMOLIO 2.4GHz Wireless TV Speakers Simultaneously in the Same House
· The two sets of SIMOLIO SM-621D should be put at least 10 meters away from each other when using them simultaneously.

room 1

room 2

SM-621D (Transmitter 1)

SM-621D (Transmitter 2)

Distance >10M (at least)

Fig 5-1

· Put the speaker on the transmitter base, then turn on the transmitter and the speaker, wait for a while until you hear sound from the speaker, then you can take the speaker away to listen.
Note: If two speakers are used on the same TV, only one transmitter needs to be connected, because one transmitter supports multiple speakers to work simultaneously.

Plug in

TV

Fig 5-2

6. Other Uses
6.1 How to Use the Stethoscope Headset with the Speaker
Follow the transmitter connection as part 3 on page 8~11, connect the stethoscope headset or your own headset to the AUDIO OUT jack at the rear of the speaker, you can turn an ordinary headset into a wireless TV headset to enjoy TV without the speaker voice disturbing your family. If you want to watch TV quietly alone, you can click MUTE key at your TV remote controller to OFF the TV internal speakers .
Note: please turn the dial knob at the speaker for headset’s volume adjustment.

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SM-621D

AUDIO OUT

TV

Fig 6-1

6.2 How to Use the Receiver as a Wired Speaker

With the AUDIO IN jack at the rear of the receiver for connecting to an audio

device like PC, MP3, Mobile Phone, iPad, etc, you can turn this receiver into

a wired speaker.

AUDIO OUT or
Headphone

PC, MP3, Mobile Phone,
iPad, etc

Ø3.5mm

Audio Cable

AUDIO IN

Fig 6-2

7. Charge the Speaker

A: Through the Transmitter Base

1. Connect the original power adapter with the transmitter and an electrical outlet, slide the OFF/ON switch to ON to power on the transmitter.
2. Put the speaker on the transmitter in correct direction. The red charging indicator on the speaker lights up and the speaker starts charging.
   B: Through the Supplied AC Adapter
   Plug the supplied AC adapter into a standard electrical outlet, plug the other end of the AC adapter into the port labeled “DC 9V” on the back of the speaker.

Fig 7-1 Fig 7-2

Plug in to
charge

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SM-621D
Notes: The charging time is approx. 3 hours. The speaker will last approx 6 hours on a full charge, but will last a lesser or greater amount of time depending on the average volume level of the speaker.

TROUBLE SHOOTING

Part 1

PHENOMENA

CAUSES

SOLUTIONS

The transmitter is not connected well.

Make sure the AC adapter and the audio cable of the transmitter are plugged well.

The analog audio cable is

plugged into the AUDIO IN jack Unplug the analog audio cable from the

of the transmitter when

transmitter.

connecting with the optical cable.

Adjust the TV volume to a sufficient

TV volume is turned down to

level. If you want to mute the TV, please

ZERO.

click the MUTE key on the TV remote

control or go to TV settings to OFF the

Internal TV speaker.

Speaker receiver

doesn’t work, Connection between the

no sound when transmitter and audio

used as a

source is wrong.

Make sure the connection is correct and in place between the transmitter and the audio source.

wireless speaker. The audio sources (TV and TV Turn on the audio sources, and adjust

related AV devices) are not turned their volume to a sufficient level.

on or their volume are set too low.

TV audio output is disable or not activated.

Follow the TV manual to change the TV’s AUDIO OUT setting to “External TV Speaker”.

The TV and TV related AV

Set it to PCM. For example: Settings >

device’s digital audio out format Sound >Digital Audio Out Format >

is not set to PCM when do optical Dolby/DTS/PCM, select PCM. Menu

connection.

depends on TVs.

The battery is not properly loaded in the battery chamber, the battery is run out or the adapter is not connected firmly.

Properly load the battery, fully charge the battery, or firmly connect the adapter.

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SM-621D

Part 2

PHENOMENA

CAUSES

The receiver is powered off automatically.

Speaker receiver

doesn’t work, There is headset or audio cable

no sound when plugged into the AUDIO OUT

used as a

port of the speaker.

wireless speaker.

The audio out port of the

connected audio device is

defective (no signal out ).

SOLUTIONS Check the big knob of power on/off status, turn off the receiver and then restart.
Check the back of the speaker receiver and disconnect the audio cable or headset from the receiver.
Connect to another audio source to have a test.

Poor sound or sound cuts in and out when used as a wireless speaker.

The audio source’s volume is set too low.

Adjust its volume properly.

The speaker is used for listening to streaming media (Netflix, Amazon Prime Video etc).

Place the transmitter base at least 4 feet away from smart WiFi TV/WiFi TV box/ TV sticks to avoid interference.

The battery’s power is too low. Charge the battery fully.

The transmitter is placed too close to metalworks or other electromagnetic wave objects.

Put the transmitter far away from the interference sources.

The connection between the

Make sure the connection is firm

transmitter and the audio source between the transmitter and the audio

is not in place.

source.

No sound or poor sound from the

The headset’s plug isn’t firmly inserted into the AUDIO OUT

headset when

jack of the speaker.

used as a wireless

headset.

The speaker is not turned on or

the volume is too low.

Can not hear sound from the receiver when used as a wired speaker.

The audio cable is not plugged well into the receiver’s AUDIO IN jack or the audio source’s Audio Out jack
The headset’s plug is still inserted in the AUDIO OUT jack of the receiver.

Make sure to insert the headset’s plug firmly into the AUDIO OUT jack of the speaker.. Make sure the speaker is turned on by the big knob, volume set to a sufficient level.
Make sure the connection is firmly and in place.
Disconnect the headset from the receiver.

SM-621D

Part 3

PHENOMENA

CAUSES

SOLUTIONS

Receiver can not be charged successfully

The transmitter is not switched Switch on the transmitter when charging

on.

for the receiver.

The receiver is not placed on to the transmitter charging cradle firmly.

Firmly place the receiver on to the transmitter charging cradle.

The battery is not loaded to the Load the battery to the battery chamber

battery chamber correctly.

according to the polarity correctly.

Mutual interference when use two sets at the same time

The receiver is not connected with the adapter properly.
The distance between the two sets is too close.

Firmly connect the receiver with the adapter when charging alone.
The two units should be put at least 10 meters away from each other.
Put the speaker on the transmitter base, then turn on the transmitter and the speaker, wait for a while until you hear sound out from the speaker, then you can take the speaker away to listen.

LIMITED WARRANTY
12 months limited warranty: The 12 months warranty will cover defects in manufacturing and product failure for a period of 12 months from the original date of purchase. The warranty period is not extended if we repair or replace a warranted product.
This warranty is provided at the discretion of Simolio Ltd. And does not cover cosmetic damage or damage due to acts of nature, accident, misuse, abuse, negligence, commercial use, or modification of or to any part of the product. Accessories such as stethoscope headset, AC adapter, ear tips and batteries are not covered under this warranty.
Please contact: support@simolio.com (for NA/AU) or upport_uk@simolio.com (for UK) and provide your Amazon order ID to register the warranty.

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SM-621D

TECHNICAL SPECIFICATION

Transmission mode Carrier frequency
Dual speakers
Operating voltage
Frequency response Distortion
Signal-to-noise ratio Range
Working time Charging time

Automatic Frequency Hopping Spread Spectrum

2.4GHz ISM BAND 2*5 Watt, 6 Ohm

Transmitter

9V / 1.5A, 110/240V power adapter with a DC 4.0X1.7mm barrel jack

Receiver

7.4V/1000mAh Li-Battery
9V / 1.5A, 110/240V power adapter with a DC 4.0X1.7mm barrel jack

20 Hz ­ 20 KHz 1% 70dB

Up to 100 Feet (without obstacles) 6 hours 3 hours

FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
FCC Warning
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
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SM-621D
residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: – Reorient or relocate the receiving antenna. – Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
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