3. 【USB Rechargeable and Long Battery Life】LED high lumens headlight comes with built-in battery and a Micro-usb cable, has a battery indicator to remind you when it needs to be charged, 4. 【Lightweight and Adjustable】 it is the ideal head light for outdoor adventurers. The headlights for head can be rotated and fixed firmly to avoid shaking and sliding when running. LED Head Lamp will shine where you want it to!!! The removable, washable, and adjustable headband on headlamp comfortably fits adults and children head 5. 【Multiple Light Modes】 ①In spotlight mode, you can switch the main strong beam, main weak beam and flashling. ② In COB floodlight mode, you can switch the side strong beam, side weak beam, red beam and red strobe. Red light has stronger penetrability and preserve night vision, head lights can penetrate fog and rain to illuminate the distancecontact us