Function: Material: environmental protection type ABS silica gel Product specification: 12.5inch *2.3inch AC Power supply voltage: 110-250volts Power frequency: 50-60HZ Vibrations frequency: 9000/min 8000/min- Use time: 1.5h-2h 10 Powerful Speeds What is in the box 1- Electric Massager 1- Travel Bag Product features: full body massage, promote blood circulation, relieve muscle pressure, eliminate fatigue