Bluetooth Speaker headphone with ( MIC , TF , FM , Bluetooth )

Bluetooth version :4.2
Speaker driver size : 40mm
Impedance : 32Ω
Frequency response : 20Hz-20KHz
Max. Input power : DC5V
Sensitivity : 117±3dB
Battery : 300mA
Charging time(PC/Laptop) : 1-1.5hr
Playback time : 6-8hr
Call time : 8-10hr
Standby time : 10hr
Colour:red,blue,glod,black,white