Microcurrent physics improves sleep. Stimulates neurotransmitters in the cerebral through microcurrent, regulates emotions and improves sleep You can fatigue, go to bed early and get up early, the body is the capital of revolution, stay up late for fun, endless scrolling, the mobile phone gives the brain a holiday, and get up early day, it will be another full day of energy Go to battle easily, compact and portable, say goodbye to bulky and cumbersome medical equipment, take it with you and feel comfortable When you have endocrine disorders, mental confusion, anxiety and depression, you can use this product to improve your sleep and have a good night's sleep When using the relaxation mode, the parasympathetic nerves are excited in the relaxed state, and the peripheral blood vessels dilate, so the temperature of the hand will rise; when the excitation mode is used, the sympathetic nerves are stimulated, the blood vessels constrict, and the hand temperature decreases Product name:Sleep Aid Instrument Working : EMS Microcurrent Charging time: 60-70Min Battery capacity: 400mAh Standby time: 6 Months Product material: ABS + Stainless steel Charging : Type-C Interface Rated power: 0.5W Input voltage: DC5V-0.5A 0.5W color: Green Material: ABS+Stainless steel Package Contents: 1 x Sleep Aid Instrument(Built-in 400mAh battery) 1 x Data Cable 1 x Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.