About this item * High-Visibility LED Light for Night Riding: Equipped with bright LED lights and four lighting modes (fast flash, slow flash,steady, and breathing), this bike tail light offers 260-degree visibility, ensuring safety during night riding and cycling * Smart Motion & Brake Sensors for Enhanced Safety: This rear bike light automatically shuts off after 30 seconds of inactivity and reactivates with movement. The brake light function flashes at full brightness for 2 seconds, alerting other riders * Easy Operation & Flexible Installation: Simple to operate with a long press to turn on/off and a short press to switch modes.Choose between saddle or seat-post mounting for a secure fit, making it an perfect bike light accessory * USB Rechargeable Bike Lights with Long Battery Life: This rechargeable bike tail light uses a 300mAh battery that charges via USB in 1.5-2 hours, providing long-lasting power for night rides and cycling