Product descriptionMULTIPLE LIGHTING MODES: The bike lights function with 5 different lighting modes & with Steering Function Display: right and left depending on your preference and the light is button type, it's easy to use.LONG LIFE BATTERY: USB rechargeable and Waterproof front and back bike lights, for this bike taillight built in 900mAh rechargeable lithium battery, can last up to 36 hours.MULTIFUNCTIONAL: The bike tail light comes with horn (130db) This bike light set is versatile enough for cycling, hiking, camping, or any outdoor activity and can be used as an emergency flashlight. This bike taillight is great for cycling at night or in places where visibility and safety are concerns. So just start your next adventure with us.EASY TO INSTALL, USE AND CARRY: The silicone mount strap for rear bike lights is designed with four openings that tightly fit around most sized seat posts and can be easily loosened and tightened, and no tools are required.ORDER NOW WITH 100% SATISFACTION GUARANTEE: We are guaranteed to be the high-quality material BICYCLE LIGHT SET, provide excellent customer service. If something goes wrong with the item, we will arrange you a free replacement or full refund, no returns required.