1. CES micro-current therapy for insomnia: Transcranial micro-current stimulation therapy. Principle: Stimulate the acupoints with low intensity micro-current, change the brainwave directed by the patient's brain, promote the brain to secrete a series of neurotransmitters and hormones closely related to anxiety, depression, insomnia and other diseases, and effectively treat anxiety, depression, insomnia. 2. Effective scientific design: The sleeping aid is designed with a wrist strap watch. The stainless steel contact surface can properly stimulate your hands, relieve pressure, help you fall asleep quickly, and improve the quality of sleep. Sleeping aids are mainly used to help people with insufficient sleep and anxiety quality fall asleep. Just 20 minutes to relax. It can relieve migraine, anxiety and stress. 3. 3 modes of adjustment: The sleep aid machine has three modes, soft/standard/strong, to help you sleep at night, help you focus on important matters, and efficiently complete the day's work. 4. Delicate design details: Use the indicator light at a glance. Exquisite appearance, smooth texture, more comfortable grip; Type-C fast charging - multiple charging methods such as charging cable, charging adapter or computer make it easier to use; Independent key design - one button open, multi frequency adjustment, easy sleep every day. 5. Easy to use and ideal gift: Watch wearing mode, one button switching mode, convenient and easy to use, regulating and calming emotions, is a unique gift for relatives, friends or yourself. Colour:White Material:Silicone+ABS Package Contents: 1 * Motion Sickness Bands 1 * USB Cable 1 * 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.