Shenzhenshishuangsikejiyouxiangongsi T-20 True Wireless Earbuds User Guide

Shenzhenshishuangsikejiyouxiangongsi T-20 True Wireless Earbuds

Bluetooth 5.0 True wireless Earbuds

Packing list

Safety rules

1. Do not remove or refit headset for any reason, otherwise it may cause headset fault and burning.
2. Do not wet the device in contact with liquid, otherwise it will cause serious damage to the device, The manufacturer will not guarantee the damage caused by water inflow of the device
3. Do not place the device in the environment with too high or too low temperature (above 75 ° C or below – 40 ° C) for a long time.
4. Please avoid using the device indicator light near the eyes of children or animals.
5. Do not use the device in thunderstorm weather. Thunderstorm may cause abnormal operation of the device and increase the risk of electric shock
6. Do not treat this electronic device as ordinary garbage when it is discarded.In order to reduce pollution and protect the earth’s environment to the greatest extent, please recycle it.

Specifications

Headset

• Bluetooth version:   V5.0 (EDR) Charing time:1.5hours
• Using time: ≈4h
• Headset impedance: 32Ω Capacity:5mw
• Frequency range: 20Hz-20KHz Sensitivity (SPL):104±3dB@1KHz
• Battery capacity: 35mA

charging box

• Battery capacity : 350mA
• Micro USB charging time: 1.5 hours
• Wireless charging time: 1.5 hours
• Battery capacity: 350mA
• Type-c charging duration: 1.5h
• Wireless charging duration: 1.5h

Product information

1. Type-c charging interface
2. Charging box power 25%
3. Charging box power 50%
4. Charging box power 75%
5. Charging box power 100%
6. Mutifunctional touch panel
7. Magnetic charging contact
8. Spiracle

Brief

• Thank you for using our Bluetooth 5.0 true wireless headset.
• It has stable connection, clear call quality and excellent music performance.
• It is stable, comfortable and durable according to the ergonomic design ;
• The charging box supports wireless charging to ensure your great experience in multiple scenes.
• Our company reserves the right to modify the contents of this Instructions without notice.

Instructions for first using

1. When opening the package for use for the first time please charge for at least 10 minutes.
2. When opening the package for use for the first time please charge for at least 10 minutes.
3. When opening the package for use for the first time please charge for at least 10 minutes.

Indicator light shows status

Earphone charging
Cover opening status:

• When the headset is put into the charging box,
• and the red light flashes, indicating that it is charging.

Cover closing status:

• When the earphone is charged, the first blue light is always on When R headset is charging, the 4th blue light is always on.
• When L&R headset are charing, the 1st and 4th blue light are always on at the same time.

Charging by charging box

• Please connect the adapter to charge through the Type – c charging cable When the power is low, the indicator does not light up
• When charging, the indicator light flashes
• When full, 4 lights are always on

Cover opening status:

• the indicator light shows
• that the remaining power is 25%, 50%, 75% and 100%

Common problems and Solutions

Fault

phenomenon

|

Fault reason

|

Solutions

---|---|---

Unable to turn on / off

|

The battery is power off

|

Charge the headset for 2-5 hours

No sound a fter pairing

|

Incorrect pairing

|

Reparing

Can make phone call, but the red light is on.

|

Low battery

Red light prompt appears

|

Please charge the headset at once

Charging without indication

|

Charger no voltage output

|

Check whether the charger is plugged in properly or whether

the power switch is on

The headset has an echo

|

Excessive volume

The environment is too noisy

|

Adjust the volume or change the place

There is noise in the call

|

Environmental interference or Headset is too far away from the device

|

Change a place or close the distance between headset and device

The volume is too low for both side

|

Headset incorrect wearing

|

Adjust the position of the headset

Unable to listen to music

|

Phone unsupported

|

Change to Bluetooth phone with stereo support

Bluetooth pairing

1. Take out two headsets from the charging box;
2. Two headsets will turn on naturally (blue light flashes), and then automatically form a team. After the team is formed, the red and blue lights of the main headset flash alternately.
3. Turn on Bluetooth search *** on your phone and click Connect.

Operation method

(in play)

| Short press twice

(in play)

Volume+|  |

Short press 1 time

Volume-| Short press 1 time|
Backward|

Long press for 2 seconds

|
Forward|  |

Long press for 2 seconds

Answer / end a call| Short press 1 time (during call)| Short press 1 time

(during call)

Refuse to answer a call| Long press for 2 seconds| Long press for 2 seconds
Voice assistant| Short press 3 times| Short press 3 times

Guarantee

Dear users, this Guarantee is the voucher for applying for warranty service.
Please cooperate with the seller to fill in and keep it properly. Thank you!

Users information

| User

name

|  | Email

address

|
---|---|---|---|---
Contact

number

|  |

Post code

|
Address|

production information

| Product

name

|  | Product barcode / Code / batch No.|
Product

model

|

Dealers information

|

Name

|  | Post code|
Contact

number

|  | Invoice

number

|

Sale date

|
Address|
Remarks

FCC

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.
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Note: 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 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.

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