Versatile Design: The LED Helmet Tail Light is a must-have accessory for cyclists, offering a versatile design that enhances safety and visibility on the road. Its sleek and compact design seamlessly integrates with most helmets.USB Rechargeable: Say goodbye to disposable batteries! This tail light features a convenient USB rechargeable design, allowing you to easily recharge it whenever needed. With a full charge, it provides up to 4 hours of continuous illumination.Customizable Patterns: Stand out from the crowd with custom patterns! This tail light allows you to customize your light display, including turn signals, brake lights, and even a speed display, making your presence known to other road users.Easy Installation: Designed for hassle-free installation, this tail light can be easily attached to most helmets, ensuring a secure fit without any additional tools required. Its lightweight construction adds minimal weight to your helmet.Waterproof and Durable: Built to withstand the elements, this tail light is waterproof and durable, providing reliable performance even in rainy or rough weather conditions. Its sturdy construction ensures long-lasting use, making it an ideal companion for all your cycling adventures.