1. This sleep instrument uses EMS micro-current to help you fall asleep easily and quickly, reduce stress and get better sleep quality. 2. Pure physical improvement of sleep quality, non-drugs, no chemicals added, no side effects, no dependence, no harm to the body. 3. Two modes (sleep mode/excitement mode) and the intensity of 15 gears can be adjusted to meet the needs of different people. 4. It is very suitable for people who are stressed, easily anxious and depressed, have difficulty falling asleep and easily wake up in the middle of the night. Specifications: Material: ABS plastic+stainless steel process Color: green Battery capacity: 300mAh Charging voltage: DC5.0V/1A Operating current: 0.005A Rated power: 0.3W Rated current: 200MA Gear: 15th gear Mode: Sleep mode, excitement mode. Packing List: 1* Sleeping instrument 1* USB Charging Cable 1* English User Manual