USB Rechargeable The 365nm flashlight has a built in rechargeable battery that can be charged by USB with a USB cable for long lasting use. Small and Portable The portable flashlight is easy to put in your pocket or backpack, does not take up too much space, easy to store. Aluminum Material This USB rechargeable flashlight is made of high grade aluminum, good color, light weight, resistant and chemically stable. Multiple charging methods This flashlight can be charged using multiple methods. Such as computers, power banks, direct charging plug mode, in car charging, etc 3 Light Modes Mini handheld torch detector3 light modes, including high brightness, low brightness and burst flash, retractable zoom, easy to use. Multi Purpose The LED flashlight uses 365nm wavelength violet light, which can be used to detect cat moss, pet urine, counterfeit money, jade, etc.