Product price $4.20
    Output voltage
    3.7V-4.2V; output power



    1.Bluetooth Version V2.1; Transmission distance >10M; 2.The bluetooth version can be paired with any bluetooth devices; 3.Hand free phone, you can answer / hang up cell phone; 4.USB/TF card music playback; 5.AUX in function,play music from MP3,PC,Mobile,ect; 6.FM radio model; 7.Colorful led light(12pcs) ;