Charging Instructions - Retevis EHN007 Bedienungsanleitung

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.
6.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】
1. 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.
2. 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.
3. 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:
1.The headset can adjust the volume of LINE-IN by clicking the "④ Volume (+) Button" and "⑥ Volume (-)
Button".
2.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 status,
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:
1.Please use a 5V 1A charger for charging;
2.The battery should be fully charged before using the headphone which is not been used for a long time.
Warning:
1.This product and accessories should be protected from children's contact to avoid injury;
2.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;
3.Non-professionals, please do not open and repair!
MAINTENANCE
1.The earmuffs should be fitted, adjusted, and maintained in accordance with the instruction. The earmuffs
should be worn at all times in noisy surroundings.
2.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.
3.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.
4.The fitting of hygiene covers to the cushions may affect the acoustic performance of the earmuffs.
5.Before and after use, store in a dry place. The temperature should not exceed 55 °C.
6.The product may be adversely affected by certain chemical substances, further information you have to obtain
from the manufacturer.
7.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.
8.The earmuffs are provided with an electrical audio input jack. The wearer should check for correct operation
before use. If the distortion of failure is detected, the wearer should refer to the manufacturer's advice.
9.If the above-mentioned information is not followed, the protection and function afforded by the earmuff may be
severely impaired.
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