| Brand Name | OEM, ODM |
| Place of Origin | China |
| Model Number | USQS-B850 |
Bluetooth Version: RDA 3.0
Frenquency: 2.402-2.480GHz.
Max Power Output: 3W
Mic Sensitivity: -38db
Sensitivity: Better than -82dbm
Range: 10-30meters
Charing Voltage: 4.8v-5.2v
Working Voltage: 3.7v-4.2v
Working Current: 150MA
Quiescent Current: >1UA
Battery: 3000Mah
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