Safer Night Riding: Charging in just 2 hours, this bike tail light features a high decibel speaker and tweeter to alert pedestrians and ensure improved safety during night rides.Safety Maximised: Thanks to 32 super bright LED lights, this bike tail light ensures your visibility from 150ft away during night rides for safer journeys.Convenient Control: Take your bike riding experience to the next level with this remote control bicycles tail light. Stay safe in all weather with its IPX4 waterproof and -4 to 140F temperature range.Versatile Use: Enhance your safety on the road with this bike tail light, ideal for adult bikes and children's bicycles, and can even be attached to backpacks for increased visibility.Optimal Visibility: Elevate your night cycling with our bike tail light; change effortlessly among 5 modes to match your environment and ensure the best lighting experience.