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It has many advantages of a headset can have:

• - Excellent ENC* function
• - Preservation of environmental awareness
  
• - Comfortable to wear
  
• - Comes with foam earplugs which can be used in noisy environments to block external noise and enhance audio clarity
  
• - Works with non-Yapalong Bluetooth devices, e.g. cellphones

Specifications:

• - Size: 120x107x45 mm
• - Weight: 28.5g
• - Bluetooth 5.4
• - ENC*
• - Mic Sensitivity: -42+/-3dB
• - Charging Time: 1.5h
• - Battery Lift: 8h (80% volume)
• - Waterproof: IP55

* ENC (Environmental Noise Cancellation) isolates the talker's voice from the background noise before the voice is transmitted.

Note:
While using the headset, it is recommended to have one ear or both ears plugged with the earplug which comes with the headset, to achieve high volume.
When the headset is used with Yapalong-7000, to receive desired volume, please adjust the volume on the headset first, and keep the settings on the radio to 3, for both Mic Level and volume level. If the volume is still no loud enough, the Mic Level can be adjust to 4 (not 5),  the volume level can be adjust to up to 5.