Features:<br> Sleep Aid Instrument: It can help people with insufficient sleep, migraine, anxiety, or stress to fall asleep as soon as possible, small body but powerful, easier to enter deep sleep every day.<br> Working Principle: Uses microcurrent to stimulate neurotransmitters in the cerebral cortex to regulate mood, calm down mind to relax the body, and thus promote sleep.<br> 2 Operating Modes: Low-frequency relaxation mode (to improve insomnia) and high-frequency exciting mode (to concentrate), just press the power button to adjust the mode, press +/- to increase or decrease the intensity.<br> Compact &amp; Portable: Lightweight and portable, with silicone anti-drop strap, easy to hang from the wrist. It can be used in the office, at home and on business trips.<br> Best Gift: Use it during the day to focus more on important things and complete your work effectively; use it at night to relieve anxiety and stress, improve insomnia. This is the best gift for yourself, your family, friends and colleagues.<br> <br> Specifications:<br> Input Voltage: DC 5V/1A<br> Working Power: 0.5W<br> Battery Capacity: 500mAh<br> Usage Time: Fixed 20 minutes automatic shutdown, can be used for about 50 times<br> Charging Time: 1.5H<br> Charging Interface: MicroUSB<br> Material: ABS+Stainless steel<br> Color: Gray, Orange, Blue (Optional)<br> Item Size: 70*32*25mm/2.75*1.26*0.98in<br> Item Weight: 44g/1.55oz<br> Package Size: 120*78*58mm/4.72*3.07*2.28in<br> Package Weight: 144g/5.08oz<br> <br> Package List:<br> 1 * Sleep Aid Device<br> 1 * Charging Cable<br> 1 * User Manual (English/Chinese)