Retron Tail Light for Road Bikes, USB-C Rechargeable, Lightweight, Day and Night Use, for Hiking, Cycling, Commuting, and School

✅ [Sturdy and Durable] The taillight is made of ABS and polycarbonate material, making it shock-resistant and durable. It weighs just 35g. ✅ [Wide Range of Uses] This taillight can be used for up to 22 hours. It's perfect for everyday use like commuting to work or school, as well as outdoor activities like hiking and cycling. ✅ [Brake-Sensing] This taillight is equipped with a brake-sensing function. The built-in G-sensor detects your bicycle's deceleration and flashes rapidly for 5 seconds to alert following vehicles that you are braking. ✅ [Visibility Up to 800m Ahead] The six LED chips provide visibility up to 800m away, even at night or in poor visibility conditions, making it easier for vehicles to notice you. ✅ [Auto Light Function] Switch from Manual Mode to Smart Mode to automatically turn the light on and off based on ambient light and vibrations, conserving battery life. You can switch between smart mode and manual mode by double-clicking the power switch on the taillight.