BT Version:V4.2+EDR

Support:Bluetooth,Calling, TF, AUX, USB

Receiver Distance:UP to 10M

Speaker specification:52mm 4Ω/ 3W

The output power:3w*1

Input power supply:DC5V 500MAH

Playing Time:Up to 3 hours

Sensitivty:85db+2odb31

Working voltage:3.7V

Color: Color: Black, Blue, Gray, Red, Orange