Reliable Night Protection: Riding at night is safer with this bike tail light's high decibel speakers and tweeter, effectively reminding pedestrians to exercise caution. Conveniently charging in just 2 hours via USB.Illuminate Enhanced: Equipped with 32 LED lights, this rear bike tail light ensures you're seen from 150 feet away, enhancing safety during night rides.Effortless Adjustment: Easily change lighting modes and brightness levels with the remote control of this bike tail light. Stay safe through any weather condition with its IPX4 waterproof rating and usable temperature range of -4 to 140F.Wide Application: Ensure your safety while cycling with this bike tail light that's versatile enough for adult and children's bikes. It can also serve as a warning or backpack light.Good Adaptability: Upgrade your night riding with our bike tail light, conveniently change between 5 modes and customize your lighting experience based on different needs and scenarios.