Features 1、PRACTICAL DESIGN: Sleep instrument design simple, new matte texture, in line with the human grip design, simple, lightweight and comfortable gift. Round button design, a key to open, adjust the number of gears. 2、USB CONNECTION: Sleep instrument can be connected to a computer USB port, mobile power, power supply, etc., long battery life, is a great Mother's Day gift. Anxiety sleep aid device is small but powerful, easy to enter deep sleep every day. 3、SLEEP AID: Handheld sleep device mainly helps people who are sleep deprived and have poor psychological quality to fall asleep as soon as possible. It takes only 20 minutes to make you more relaxed and has the function of migraine relief, anxiety relief and stress release. 4、MULTIFUNCTIONAL: Handheld sleep aid instrument is not only to help sleep, but also to regulate and calm emotions. Wearing a sleep aid in the office or study area can help you concentrate on what's important and get your work done effectively. 5、PORTABLE: Light weight sleep aid device, easy to use, can be used for sports, walking, can be worn anywhere, can be used at any time you need, so you get relief from insomnia headache stress and anxiety machine. Specification Item Type: Sleep Instrument Material: ABS Product Color: Green Number of Product Gears: 3 Gears Product Mode: Sleep, Excitement Battery Type: Lithium Battery Battery Capacity: 150mAh (Shipped with Built in Battery) Power Supply Type: USB Data Line Hand Strap: Approx. 25cm/9.8in Foot Straps: Approx. 30cm/11.8in Package List 1 x Sleep Instrument 1 x Instruction Manual 1 x Foot Straps 1 x Hand Straps 1 x USB Data Cable