Feature:1. High brightness LED lights.2. Sealed and waterproof.3. The ultra-wide-angle irradiation range provides more safety protection.4. Two fixing methods: paste installation - can be fixed on various objects, strap installation - firmly installed on various shapes of car bodies.Specification:Product title: Bicycle tail light 7-color drone night warning light 7-color LED USB charging waterproofMain body material: ABSProduct color: BlackProduct size: about 30x25mmButton style: push switch, long press to turn on, long press to turn off, short press to switch gears after turning on.Battery life: slow flash up to 8-10H, always bright up to 1-2H (approximate estimate)Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you Please allow 1-2cm measuring deviation due to manual measurement. Package includes:1 x Warning Light1 x Charging Cable2 x Silicone Straps4 x Hook-and-loop