BT-K21

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BT-K21

BT-K21

Specifications

 Bluetooth V4.1+EDR      

Bluetooth Frequency: 2.402GHz-2.480GHz  

Transmission distance: 10M  Sensitivity: 95dB              

Voltage: 3.7V                

Working Hours: 8H          

Charge Voltage:5V          

CHarge current: 300mA