1. It adopts a double massage technique, to gain a powerful synchro vibration massage effect, and give you a real and effective massage effection. 2. It can deeply and smoothly massage on your waist, back, bottom, and legs. 3. It is designed by manual and auto operation. 5 optional functions in manual operation, 4. With handhold micro computer controller, it is easy and convenient to operation. 5. It can promote blood circulation, lessen the muscle tiredness, accelerate digest, and improve constipation, efficiently helpful to decrease the redundant fat of the waist, leg, back or haunch. It is really an underservant for you to obtain beautiful and healthy stature. Voltage: DC 24V Rated Power: 50W