Label:Yes Material: ABS+Stainless Steel Size: 25 x 32 x 70mm Color: Grey, Blue, Yellow Endurance Time: 20 Hours Suggested Use Time: 15 Minutes Mode: Sleep Aid / Inspiration Power Supply Mode: USB Charging Working Power: 0.5w Input Voltage: DC 5V/1A Battery Capacity: 500mAh Type: Holding Sleep Instrument Brand New and High Quality Package Include: 1 x Host 1 x USB data cable 1 x Silicone case 1 x Manual Features: 1. Simple oval design, new matte texture, in line with human hand grip design, simple and comfortable. 2. Round button design, one key to turn on, adjust power. Easy to fall asleep every day. 3. USB convenient charging, can be connected to a computer USB port, power bank, power supply, etc., long endurance. 4. It can stimulate neurotransmitters in the cerebral cortex through microcurrents, regulate emotions, and promote sleep. 5. When using this product, properly stimulate the hands, so that the hands and brain will be at the same frequency to calm the anxiety. 6. Light weight and in small size, easy to carry when going out. Suitable for patients with insomnia and anxiety. Tips: 1.Due to the light and monitors effect, colors may have lightly difference. 2.Please allow slightly size errors due to manual measurement.Thank for your understanding.