Bluetooth Version：RDA 3.0
Frenquency：2.402-2.480GHz.
Max Power Output： 5W
Mic Sensitivity：-38db
Sensitivity：Better than -82dbm
Range：10-30meters
Charging Voltage： 4.8v-5.2v
Working Voltage：3.7v-4.2v
Working Current： 150MA
Quiescent Current： >1UA
Battery：500Mah Polymey  LI
Battery:  Built-in
Charging time: 2h
Playback time: 5h
Material:Plastic + Silicone
packing:neutral color box
Color: Red,Blue,White,Green,Black,Orange
Accessories : Charging cable ,User Manual