Vktech Multifunctional Bike Front Lights Bicycle Led Waterproof with Speaker Powered by 3 * AAA batteries (not included). Portable and waterproof design, ideal for outdoor bike bicycle cycling. The item is a portable and multi-functional LED bike bicycle headlamp front light, which is mainly made of durable hard plastic material, and adopts 3 LEDs as light source to give off super bright white light for illumination to ensure the safety of your night riding. It can also act as a bike bicycle electric horn bell for use. With the included mounting bracket, it is very easy to install on the handlebar for convenient to use.