Material: ABS+PC Power Supply: USB chargeable Power Supply: USB Recharge Input Voltage: 5V/1A Charge Time: 2 hours Massaging Mode: First Gear: 6200 times/min Working Current: 70±10%mA Power: ≤0.3W Second Gear: 9500 times/min Working Current: 680±10%mA Power: ≤2.8W Temperature: 45±5° Third Gear: 12500 times/min Working Current: 700±10%mA Power: ≤3W Temperature: 45±5° How to use 1.apply the skin care product to neck 2.select the slow speed gear,hold the massage head lift your forehead from bottom 3.Continue to choose the slow speed gear,hold the massage head lift your backneck in the direction of bottom-up. 4.According to your personal need to choose the medium or high speed gear mode to lift your neck in the direction of bottm-up.