TWS-M1 TWS Bluetooth Earphone with Magnetic Charging Box, Support Memory Connection & Call & Battery Display Function

Size: 72x38x30mm
Working voltage: 3.3V-4.2V
Bluetooth version: V5.0+EDR
Headphone battery capacity: 45mAh
Charge box battery capacity: 350mAh
Duration of use: 3-4 hours.
Standby time: about 60 hours.
Speaker type: titanium composite film.
Transmission range: 2.40GHz-2.48GHz
Sensitivity: 98+3dB
Communication distance: The effective distance is 15 meters
In-ear mode: slant into the ear to fit the contour.