This bicycle horn light combines safety, convenience, and practicality. Designed with double T6 beads, 500 lumens of high brightness, it lights up your night ride. Built-in 2000mAh large-capacity battery, strong endurance. Bicycle Horn Light/ Bicycle Horn Light withWireless Speedometer (Optional) Features: Double T6 bead design, illuminating your riding journey Built-in 2000mAh large-capacity battery, strong endurance IP6 waterproof, worry-free for rainy day riding Remote control electric bell design, high decibel, enhances safety USB direct charge, charge anytime, anywhere Speedometer model horn headlight, with five changeable modes, total/single journey record, high/average speed, total time. Specifications: Model:Bicycle Horn Light/ Bike Speedometer Wireless with Horn Bicycle Head Light(Optional) Color: Black Red/Black Blue/Black Lamp Bead: Double T6 Lamp Bead Waterproof Level: Daily Life Waterproof Size: 11*5.8*4.5cm/ 4.3*2.3*1.8in Weight: 172g /6.1oz (including battery) Package List: 1 x Horn Headlight 1 x USB Data Cable 1 x Fixed Base 1 x Horn Switch