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 waterproof Main body material: ABS Product color: Black Product size: about 30x25mm Button 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 Light 1 x Charging Cable 2 x Silicone Straps 4 x Hook-and-loop