TM-078

Bluetooth version: JL V5.0+EDR 
Transmission distance:10 m 
Playing time:10~12 hours 
standby time: 300 hours 
battery: Li-po 400 mAh
Charging time: 1~2 hours
Speaker: Ø 40 mm
Sensitivity: 110 + 3dB S.P.L at 1KHZ
Impedance:32 Ω
Frequency response: 20hz-20khz
Rated power: 15mW * 2