Features: *High-Quality Material: This sleep aid is made of high-quality material, which is wear-resistant and durable, not easily damasgeds and can be used for a long time. *Portable: This sleep aid is lightweight, small and easy to carry, so it can be used in the office, home and on business trips. *Relieve insomnia: This sleep aid can help people with sleep deprivation and insomnia fall asleep as soon as possible. It also has the ability to relieve migraines, relieve anxiety, and relieve stress. *Adjustable Mode: This sleep aid is designed with three modes, which can adjust the frequency according to personal-needs without irritating the skin. *Easy to use: This 1*AAA battery not included powered/rechargeable handheld sleep aid device is one-touch activated and very simple to use. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: ABS Size: Length: 81mm Rechargeable batterys capacity: 150 mAh Battery power supply method: 1*AAA battery Not Included Package List: 1 x Sleep Aid Device