Feature: 1. Sleep Aid: This sleep aid device mainly helps people with insufficient sleep and poor psychological quality to fall asleep as soon as possible, also relieving migraines, anxiety and stress. 2. Anxiety Relief: Microcurrent stimulates neurotransmitters in the cerebral cortex to regulate emotions, thereby promoting sleep, stimulating acupoint, promoting relaxation and releasing stress, sleeping peacefully. 3. Adjustable Modes: Light and portable, easy to operate. USB charging speed is fast, easy to use, there are two available operating modes, low frequency decompression mode and high frequency excitation mode, just press the power button to adjust the mode. 4. Applicable Scenes: Can be used for 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. 5. Perfect Gift: With this product, you can help you fall asleep faster and relax completely during sleep. A handheld sleep instrument can be a great gift to friends and families who has trouble sleeping. Specification: Item Type: Sleep Aid Device Size: Approx. 75 x 55 x 38mm/3.0 x 2.2 x 1.5in Material: ABS, Stainless Steel Input: 5V 0.5A-1A Battery Type: Lithium Battery 400MAH (Shipped With Built In Battery) Working Power: 0.5W. Package List: 1 x Sleep Aid Device1 x USB Cable1 x Instruction Manual