Product information:
[Material]: ABS PC TPU
[Interface specification]: 3.5mm,Type-C
[Product solution]: AD1319XC QFN32 4*4 Jie Li
[Bluetooth version]: 5.1
[Bluetooth device name]: ES-BT10
[Transmission distance]: 10m
[Operating frequency]: 2.402G-2.48G
[Working power]: 1 6dbm
[Battery capacity]: 140mAh
[Charging power]: DC 5V/150mA
[Charging time]: 1.5 hours (when charging, the indicator light is red and long, full and off)
[Standby duration of transmitting music playback]: 7 hours
[Standby duration of receiving music playback]: 8 hours
Size：19.95*12.05*96.69mm

Packing list:
Bluetooth adapter * 1, instruction manual * 1
Product Image: