1.USB Rechargeable: The battery and USB cable are included in the package. When the flashlight was charging, the switch button was red, when charging was finished, the switch button was green(Attention: When using the battery for the first time, please remove the film on the surface of the battery). 2.4 Lighting Modes: Our LED flashlight is 600 lumens with 4 lighting modes (high, low, strobe and SOS) convenient for our daily use, it is bright enough to be a dedicated flashlight or just available in emergency(Note: after strobe mode, you need to long press three seconds, then switch to the fourth mode - SOS). 3.Durable Metal Clip: The compact clip seems much sturdier to prevent the flashlight from rolling too far on a flat surface, so the flashlight can stay in your pocket and be ready at any time. 4.Compact and Portable: Its compact design and balanced weight-to-size ratio make it the ideal product for everyone. Small enough to take virtually anywhere and satisfy your different light demands. 5.Widely Use: IPX4 waterproof, our led flashlight can work in rainy day, so perfect for camping, hiking, fishing, running, walking, power outages, emergencies, targeted searches and general household use. (Note: It can not be soaked in water)