Product parameters: Product name: Sleep aid Battery capacity: 500mAH Charging voltage: DC3.7V Battery life: 20 hours Material: ABS Color: Orange, white, blue Suggested use time: 15 minutes time Mode: Decompression Encouragement Feature: 1. Sleep aid is mainly to help people with sleep insomnia and headaches relieve anxiety and psychological quality, and help you fall asleep as soon as possible. 2. Relieving anxiety and stress helps to fall asleep quickly, relieve stress, and improve sleep quality. 3. Stylish, simple, and lightweight design, convenient to put in a handbag, and easily charge and power via USB. Packing list: Sleep aid 1 Manual 1 USB data cable 1 Notes: Sleep aids may be effective on the human body, but the effect may not be satisfactory. This is not a product quality problem.?Best gift?Using this product, you can help you fall asleep faster and relax completely during sleep. For friends with sleep problems, this is a good gift. ?Usage scenarios?Can be used in the office, home and business trips, 15 minutes a day can moderately relieve headaches, help you get rid of insomnia, anxiety, sleep problems, and help you get a good night's sleep. ?Features?Light weight sleep aid machine, easy to use, can be used for sports, walking, can be worn anytime, anywhere, so you can get relief insomnia headache pressure and anxiety device. Can be used in any need. ?Easy to use?The sleep aid can be connected to a computer USB port, mobile power supply, power supply, etc., and has a long battery life. ?Sleep aid?A hand-held sleep aid for insomnia and relaxation, helping people more effectively relieve stress and anxiety, reduce depression, moderate headaches, improve sleep quality, and help you fall asleep quickly.