1.With 1200mAh battery, it can be used about 3.5h
2.After full charged; With USB recharge;
3.Smart and portable design, cordless convenience, One hand to easy operate;
4.Soft rubber material,anti-corrosion;
5.3 vibration intensity and 1 automatic mode for You to choose;
6.One button to easy operate; 360degree, massager roller;
7.The diameter is 11cm; The high intensity speed is 3000rpm.