Features: Speedometer, bike lights, and horns 3 in 1, rejecting unnecessary and complicated equipment. Our set of equipment solves the problem of front and rear bike lights, speed, and horns T6 dual light beads, up to 800lumens, 4000mAh battery, single light and dual light can be freely switched, and both lights can also be turned on at the same time. Multi function: The bike lamp is equipped with a speedometer/horns(3 modes, which is widely used. It is suitable for cycling, hiking, camping or any outdoor activities. It can be used as an emergency flashlight, Personal-alarm, and is very suitable for cycling at night or in places where visibility and safety are concerned. Provide quality visibility: The 800lumen bike headlights provide excellent visibility and maintain a safe distance in the dark. It can be installed in a few seconds: The installation straps of the bike headlights and taillights can tightly fit most handlebars and size seats poles. Installation and release are simple and fast. No tools required. The headlights and built-in speakers have a two in one switch, making it very easy to control. 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: Bead: T6 dual light beads Battery: 4000mAh battery Waterproof Rating: Life Waterproof Package List: 1x 3 in 1 Bike Lights