RETEVIS EHN007 Bluetooth Electronic Noise Reduction Earmuff User Manual

: June 16, 2024
: RETEVIS

Table of Contents

Product Overview
Technical date
Read this instruction thoroughly before using the product
Product Description
IMPORTANT USER INFORMATION
HOW TO OPERATE THE 【Function 1&2】
HOW TO OPERATE THE AUDIO INPUT FUNCTION
Charging Instructions:
MAINTENANCE
Approved Accessories
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

RETEVIS EHN007 Bluetooth Electronic Noise Reduction Earmuff User Manual

Product Overview

Adjustable Headband
Sound Pick-up Microphone
Play/Pause/Answer a Call Button
Volume (+) Button
Bluetooth on/off Switch
Volume (-) Button
Switch on/off Sound Pick-up Knob
Bluetooth Indicator
3.5mm Audio Input Jack
Microphone for Calling
Charging Indicator
Micro USB Charging Port

Technical date

Bluetooth version: 5.0
Support protocols: HSP1.2, HFP1.7, A2DP1.3, AVRCP1.6
Transmission distance: ≥10m
Call duration: ≥ 20 hours
Charging time: 4 hours
Storage temperature: -20-55℃
Storage humidity : <30%
Operating temperature: 0-40℃
Operating humidity : ＜80%
Weight: 375 g
Headband material: PC+POM+PE
Ear cushion material : PU foam covered with PVC
Cushion: PU foam coated in PVC
This product complies with PPE regulation (EU)

Read this instruction thoroughly before using the product

Earmuffs complying with EN352-1 are of Medium size range ear-mulls will fit the majority of wearers. Small size range and Large size range ear-muffs are designed to fit wearers for who medium size range earmuffs are not suitable. The earmuff provides audio signal sound pressure level limitation and the earmuff limits the
entertainment audio signal to 82dB adequate for the ear. The audibility of warning signals at a specific workplace may be impaired while using the entertainment facility.

Warning!

The output of the electrical audio circuit of this hearing protector may exceed the daily limit sound level!

Product Description

【Function 1】 EHN007 Earmuffs with Bluetooth Technology lets you seamlessly stream entertainment from your mobile phone and any other Bluetooth-enabled device. An integrated microphone lets you make and take phone calls without removing the ear protection.
【Function 2】 The built-in stereo microphones allow detection of the direction of ambient sounds, enhancing communication abilities and awareness of surrounding sounds such as voices, machines, and warning signals to a safe level yet it provides good hearing protection.
【Function 3】 The earmuffs can also actively listen to the surrounding sound.When
the ambient sound is lower than 82db, the sound will continue to be amplified to 82db; when the ambient sound exceeds 82db, it will automatically attenuate the sound exceeding 82db, and it will be reduced to 82db to protect hearing.

IMPORTANT USER INFORMATION

Extend the headband before use. Place the ear cups over each ear, and make sure the microphone is in the forward position to obtain the optimal listening condition.
Adjust the headband by sliding the headband up or down to get a suitable position.
The ear cushions should seamlessly cover the ears and firmly against the cheeks. For optimal effect, please remove all hair under the cushion. And the noise attenuation effect will be adversely affected by anything that impairs the seals of the earmuff cushions against the cheeks, such as thick spectacle frames, hats, etc.

HOW TO OPERATE THE 【Function 1】 1.Bluetooth On/off.

Press and hold the “⑤ Bluetooth on/off Switch” for 3 seconds and a tone “Power on” is advised, then the
Bluetooth function is turned on. The indicator light is red (on for 1 second) likewise, press and hold the ”
⑤ Bluetooth on/off Switch” for 3 seconds to turn off the Bluetooth function, and a tone “Power off” is advised.
Pairing status and empty paired list.
Press and hold the “⑤ Bluetooth on/off Switch” for 6 seconds while in the off state, or press and hold the“③ Play/Pause/Answer a Call Button“ for 3 seconds to disconnect when connected, the earmuff will be in the pairing status, and the Bluetooth indicator flashes blue every 10 seconds; when the earmuff is in the pairing state, it can be detected and paired by other devices such as mobile phones, the name of the earmuff shown on the other device is: “RETEVIS_EHN007“, and the successfully paired devices will be saved in the list. In the Bluetooth disconnected state, press and hold the “⑥ Volume (-) Button” and “④ Volume (+) Button” for 5 seconds at the same time, which will clear the paired list.
Disconnected State and Connected State.
When the earmuff is disconnected to Bluetooth (the indicator flashes red and blue rapidly), if there is a device in the pairing list, the headset will actively connect to the device when power is on again. The indicator light flashes blue every 10 seconds after the headset is connected to the device or while it is working.
Call function and Control.
When the earmuff is connected to Bluetooth, double-click the”③ Play/Pause/Answer a Call Button” to re dial the last dialed number; When the earmuff is in the outgoing call, click the “③ Play/Pause/Answer a Call Button” to cancel the external pullout; When the earmuff is ringing, click the “③ Play/Pause/Answer a Call Button” to answer the call, and press and hold the“③ Play/Pause/Answer a Call Button” to reject the call. When the earmuff is in a call, click the“③ Play/Pause/Answer a Call Button“ to cancel the current call, and double-click the”③ Play/Pause/Answer a Call Button” to switch between “Use the phone to talk” and “Talk with the headset”, and click the “④ Volume (+)/⑥ Volume (-) Button” to increase/decrease the call volume.
Play Music and Control.
When the earmuff is connected, click the“③ Play/Pause/Answer a Call Button” to play music. During play status, click the“③ Play/Pause/Answer a Call Button” to pause:
When the headset is playing music, click the “④ Volume (+)/⑥ Volume (-) Button” to increase/decrease the volume, and long press the “④ Volume (+)/⑥ Volume (-) Button” to play the next song/to play the previous one.
Bluetooth Under-voltage Prompt Function and Automatic Shutdown.
When the Bluetooth function is turned on, and the battery is low power, the indicator light flashes red every 10 seconds, and a ”beep“sound is sounded every 2 minutes. After the battery is exhausted or the pairing time exceeds 5 minutes, the Bluetooth will automatically shut down.

HOW TO OPERATE THE 【Function 1&2】

After properly wearing the earmuff, clockwise turn the “⑦ Switch on/off Sound Pick-up Knob”, after”click”, the headphones are powered on. Continue to clockwise rotate the “⑦ Switch on/off Sound Pick-up Knob” to adjust the volume from low to high.
Adjust the volume from high to low by counterclockwise rotating the “⑦ Switch on/off Sound Pick-up Knob“, after”click”, the headphones are powered off.
After the earmuff is powered on, The earmuffs can also actively listen to the surrounding sound.When the ambient sound is lower than 82db, the sound will continue to be amplified to 82db; when the ambient sound exceeds 82db, it will automatically attenuate the sound exceeding 82db, and it will be reduced to 82db to protect hearing.

HOW TO OPERATE THE AUDIO INPUT FUNCTION

Use the included 3.5mm audio cable to connect the earmuff to your playback device to enter LINE-IN operation.
(Automatically detect that the cable is plugged in and starts working. When you are finished, you should unplug
the cable to prevent the battery from running out.)

Note:

The headset can adjust the volume of LINE-IN by clicking the “④ Volume (+) Button” and “⑥ Volume (-) Button”.
When the LINE-IN interface has an audio cable inserted, the Bluetooth function cannot be turned on, and the already opened will also be automatically turned off. When the line-in is removed, it switches to Bluetooth Astatus, and a tone “Bluetooth connected“ is advised.

Charging Instructions:

Connect your USB charger to the earmuff, using the equipped USB charging cable. The charging indicator lights
red to indicate that it is charging; the charging indicator lights green to indicate that charging is completed.

Note:

please use a 5V 1A charger for charging;
The battery should be fully charged before using the headphone which is not been used for a long time.

Warning:

This product and accessories should be protected from children’s contact to avoid injury;
There are batteries and flammable materials in this product. Do not get close to the fire source and put it in a high-temperature environment to avoid explosion or fire;
Non-professionals, please do not open and repair!

MAINTENANCE

The earmuffs should be fitted, adjusted, and maintained in accordance with the instruction. The earmuffs should be worn at all times in noisy surroundings.
The earmuffs should be regularly inspected for serviceability. The earmuffs may be cleaned with mild soap and water. They must not be dipped into the water.
Earmuffs and in particular cushions may deteriorate with use and should be examined at frequent intervals for signs of wear, for example, cracking or sound leakage.
The fitting of hygiene covers to the cushions may affect the acoustic performance of the earmuffs.
Before and after use, store in a dry place. The temperature should not exceed 55 °C.
The product may be adversely affected by certain chemical substances, further information you have to obtain from the manufacturer.
The earmuff is provided with electronic restoration of surrounding sound. The wearer should check the correct operation before use. If distortion or failure is detected, the wearer should refer to the manufacturer’s advice for maintenance and replacement of the batteries. The microphone’s wind protector, which eliminates white noise etc. should be kept clean.
The earmuffs are provided with an electrical audio input jack. The wearer should check for correctoperation before use. If the distortion of failure is detected, the wearer should refer to the manufacturer’s advice.
If the above-mentioned information is not followed, the protection and function afforded by the earmuff may be severely impaired.

RF ENERGY EXPOSURE AND PRODUCT SAFETY GUIDE FOR TWO-WAY RADIOS

ATTENTON

Before using this radio, read this guide which contains important operating instructions for safe usage and rf energy awareness and control for compliance with applicable standards and regulations.

User instructions should accompany the device when transferred to other users.
Do not use this device if the operational requirements described herein are not met.

FCC Requirements:

This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. (Licensed radios are applicable);

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (Other devices are applicable)

This device may not cause harmful interference, and
this device must accept any interference received, including interference that may cause undesired operation.

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.

CE Requirements:

(Simple EU declaration of conformity) Shenzhen Retevis Technology Co., Ltd. declares that the radio equipment type is in compliance with the essential requirements and other relevant provisions of RED Directive 2014/53/EU and the ROHS Directive 2011/65/EU and the WEEE Directive 2012/19/EU; the full text of the EU declaration of conformity is available at the following internet address: www.retevis.com.
Restriction Information
This product can be used in EU countries and regions, including: Belgium (BE), Bulgaria (BG), Czech Republic (CZ), Denmark (DK), Germany (DE), Estonia (EE), Ireland (IE), Greece (EL), Spain (ES), France (FR), Croatia (HR), Italy (IT), Cyprus (CY), Latvia (LV), Lithuania (LT), Luxembourg (LU), Hungary (HU), Malta (MT),
Netherlands (NL), Austria (AT), Poland (PL), Portugal (PT), Romania (RO), Slovenia (SI), Slovakia (SK), Finland (FI), Sweden (SE) and United Kingdom (UK).
For the warning information of the frequency restriction, please refer to the package.
Disposal
The crossed-out wheeled-bin symbol on your product, literature, or packaging reminds you that in the European Union, all electrical and electronic products, batteries, and accumulators (rechargeable batteries) must be taken to designated collection locations at the end of their working life. Do not dispose of these products as unsorted municipal waste. Dispose of them according to the laws in your area.

IC Requirements:

Licence-exempt radio apparatus

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and
Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:

This device may not cause interference.
This device must accept any interference, including interference that may cause undesired operation of the device.

Electromagnetic Interference/Compatibility

NOTE: Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, designed, or otherwise configured for electromagnetic compatibility

Avoid Choking Hazard

Small Parts. Not for children under 3 years.

Protect your hearing:

WARNING

Use the lowest volume necessary to do your job.
Turn up the volume only if you are in noisy surroundings.
Turn down the volume before adding headset or earpiece.
Limit the amount of time you use headsets or earpieces at high volume.
When using the radio without a headset or earpiece, do not place the radio’s speaker directly against your ear
Use careful with the earphone maybe possible excessive sound pressure from earphones and headphones can cause hearing loss

Note: Exposure to loud noises from any source for extended periods of time may temporarily or permanently affect your hearing. The louder the radio’s volume, the less time is requiredbefore your hearing could be affected. Hearing damage from loud noise is sometimes undetectable at first and can have a cumulative effect.

Safety Operation

Forbid

WARNING

Do not place a portable radio in the area over an air bag or in the air bag deployment area. The radio may be propelled with great force and cause serious injury to occupants of the vehicle when the air bag inflates.
Pull by the plug rather than the cord when disconnecting the charger.
Contact Retevis for assistance regarding repairs and service.