1. Vibration function--massage
2.Bluetooth 4.2
3.Power rating : 5W
4.Rated impedance : 3 ohm
5.Working hour : 3-4hrs
6.Working range : 10m
7.Power supply : USB 5V
8.Battery voltage : 3.7-4.2V
9.Battery capacity : 900mah
10.Frequency response : 100Hz-20kHz