Bluetooth+ANC
BT Version: QCC3003+AMS3415 5.0
Speaker: 40mm
Frequency: 2. 4GHZ-248GHZ
Working distance: 10 meters
Noise Cancellation Sensitivity: 21db(3db)
Battery: 500mah
Voltage: 3.7V
Talk Time: ≥12Hrs
Standby Time: ≥200 days