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Model Name：HL66 21
Power Supply: USB 5V, 1A
Built-in Lithium Ion batteries: 3.7V 800mAh
Output power: RMS 3Wx1
Bluetooth Profile Supported: A2DP, AVRCP
Working range: up to 8-10m
Working atmosphere: 0℃-40℃/20%-90%RH
Maintenance
Please follow the instructions below before clear the unit
Power off the unit first before clear
Use a soft, dry, lint-free cloth to wipe gently
Do not use alcohol, benzene, thinners or other chemical detergents as
these can cause the casing to be warped or discolored
Storage
If the unit will not be used for an extended pe riod of time, power off the
unit and place the unit with accessories into the package
Do not set the unit in a damp, high temperature or the sun point-blank
place
Troubleshooting
Issue: Pairing is unsuccessfully after multiple attempts
Solution:
Check if the Bluetooth© indicator light is on. If the indicator light is off,
please press the power button to turn the unit on. If the Bluetooth©
indicator light still doesn’t come on after pressing the power button, please
charge the unit.
Check for other Bluetooth© devices around the surroundings that may
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