Features: Great for sports (night running walking hiking biking mountain biking) walking (better dog sighting) and kids on the ways to school Waterproof and Comfortable: The headlight has a compact design and is easy to carry. The lights are waterproof and can also be used in harsh weather conditions USB Rechargeable: This headlight comes with a built-in battery that can be charged via the USB port 4 Lighting Modes: Just press the power button to cycle through each light mode. Three different intensities can be set. The red LED is used as a flash. Versatile with the practical clip clip it can be clipped to hats shirts jackets satchels strollers or dog harnesses. 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: Lamp: 6.542.5cm Battery: Lithiums polymer battery (3.7V/300MAH) Lamp material: ABS plastic (28.5g) Function: 1. Press to turn on and switch between 3 light intensity levels + SOS function 2. 120 lumen 3. Level 1: 2 hours Level 2: 3.5 hours Level 3: 5 hours SOS function: red light flashes for 10 hours Charging voltage: 5V Battery capacity: 300MAHS Rated power: 1W Charging time: about 2 hours includes: 1X LED Clip Lamp "