M3 Bluetooth Headset Subwoofer TWS Bluetooth Headset

Product information:

Product model: wireless bluetooth headset
Specification: 62X40X27mm
Working voltage: 3.3V-4.2V
Bluetooth version: V5.1+EDR
Battery capacity: 50mAh/280mAh
Use time: 3-4 hours
Standby time: about 300 hours
Speaker type: 8 cm copper ring dynamic
Transmission range: 2.40GH2.48GHz
Sensitivity: 98db+3db
Communication distance: effective distance 15 meters
Ear entry method: oblique entry to the ear to fit the contour of the ear

Packing list：
Wireless headset x1