USB rechargeable: battery and USB cable are included in the package. When the flashlight is charging, the switch button is red, and when charging is complete, the switch button is green (Note: When using the battery for the first time, please remove the film from battery surface). 4 Lighting Modes: Our LED flashlight is 600 lumens with 4 lighting modes (high, low, strobe and SOS) for our daily use, it is bright enough to use as a dedicated flashlight or just for emergencies (Notes: Strobe in back mode, you need to press and hold for three seconds, then switch to fourth mode - SOS). DURABLE METAL CLIP: The compact clip looks sturdier to prevent the flashlight from rolling too far on the surface, so the flashlight can be kept in your pocket and ready to go. Small and Portable: Its compact design and balanced weight-to-size ratio make it ideal for everyone. Small enough to be carried almost anywhere to meet your different lighting needs. Wide Usage: IPX4 waterproof, our LED flashlight can work in rainy days, perfect for camping, hiking, fishing, running, walking, power outages, emergencies, targeted research and general home use. (Note: do not soak in water)