WITH CE, ROHS CERTIFICATE Specifications: Maximum power: 250W Speed range: 20 levels (1-20 levels) Amplitude:1-10mm Frequency:0-18reps/s Max.User weight:120kgs Function: 1. Vibrate your whole body, refreshing your body. 2. Excellent body shaker, burning your body fat quickly. 3. Other insomnia efficiently. 4. Stimulate appetite, improve digestion. 5. Increase blood flow to keep you healthy. 6. Activate joints, ease arthrosis ache