Enhanced Visibility and Safety: your night rides are safe with rechargeable bike light set. Multi-functional Design: Comes equipped with a built-in bike alarm for added security. The set offers various lighting modes to suit different environments and weather conditions. Long-Lasting and Convenient: Enjoy extended riding times with long-lasting battery life. Easy to install and operate, making it a perfect choice for daily commuters and recreational cyclists alike. and Weather Resistant: Constructed with high-quality materials, the bike lights are and resistant to water and dust, ensuring functionality in all weather conditions. Built in battery: 3.7V 1500mA lithium battery Standby time: 4-8 months Charging interface: USB Type-C 5V Waterproof level: IP65 Working temperature: -40~+70 C Storage temperature: -40~+70 C Working humidity:Less than 95% Remote control: Built in battery: CR2032 button battery standby for 3-5 years (calculated at 30 times per day) Remote control distance: 30-60 meters Transmission and reception frequency: 433.92MHz Waterproof level: IP65 Working temperature: -40~+70 C Storage temperature: -40~+70 C Working humidity:Less than 95% Due to different batches, there may be differences in product appearance and printed text, which will not affect use Colour:Black Material:ABS type: A:old style Package Contents: 1 x Tail light 1 x Bow bracket(With installation accessories package) 1 x Remote control(with battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.