Product name: Headlight Product size: 6.7*3*2.8cm/2.6*1.2*1.1in Battery:600mAh Endurance:2-4h Product material: ABS Product features: 1. USB Rechargeable Bike Front Light: This high-brightness light is USB rechargeable, ensuring you have reliable illumination for night riding. 2. Outdoor Night Riding Safety: Enhance your visibility and safety during outdoor night rides with this front light that also serves as a warning light. 3. IPX4 Waterproof Rating: Designed for outdoor use, this light has an IPX4 waterproof rating, providing protection against splashing water and rain. 4. Detachable Mounting Bracket: The light comes with a detachable mounting bracket, allowing you to easily install and remove it from your bike. 5. Convenient and Versatile: Stay prepared for night rides with this convenient and versatile bike light that offers reliable and visibility. Precautions: 1. As we know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel to contact me we will give you some suggestion, but it is for you reference only. Shipment includes: 1 pc Headlight or Headlight + taillight