Characteristic: 1. The sleep instrument uses EMS micro-current to help you fall asleep easily and quickly, reduce stress and obtain better sleep quality. 2. Pure physics improves sleep quality, without drugs, added chemicals, side effects, addiction and harm to the body. 3. Two modes (standby mode/wake-up mode) and 15-speed intensity can be adjusted to meet the needs of different people. 4. It is very suitable for people who are stressed, prone to anxiety and depression, difficult to fall asleep, and easy to wake up in the middle of the night. Characteristic: Material: ABS plastic+stainless steel process Color: green Battery capacity: 300mAh Charging voltage: DC5.0V/1A Working current: 0.005A Rated power: 0.3W Rated current: 200mA Speed: speed 15 Mode: standby mode, wake-up mode. Net weight: 0.027KG Product size: 6.5 * 4 * 3.5cm Package size: 10.4 * 9.3 * 4.1cm Packing list: 1 * Sleep instrument 1 * USB charging cable 1 * English user manual