【30 Super Bright LED Lights, Super Long Lifespan】 - 12 ultra-bright red LED lights and 18 yellow LED lights; striking red taillights ensure that other road users can see you day and night. You can install and remove the light in seconds, and whether on steep or uneven roads, the LED bicycle light stays firmly on the frame and neither wobbles nor falls off, guaranteeing your safety and reliability.

【Wireless Control & Flashing】 - Turn on the taillight switch for the remote control; 5 modes: red light - flashing red light - full flash (red and yellow light) - left turn signal + beep - right turn signal + beep; You can switch between different modes depending on your needs and different occasions to get the best lighting experience. 【USB Rechargeable and Waterproof】- Built-in 900mAh polymer battery in the taillight, usage time can exceed 5 hours (low mode). The bicycle taillight charges from your computer, power bank, wall outlet, or any device with a USB port with the included cable. Has a micro-USB port. The overall waterproof design means that rainy weather will not affect its use (make sure the USB port is closed). 【110dB Beep and Versatility】 - This taillight and its 110-decibel beep safely remind pedestrians that cycling at night is safer by turning on the turn signals. Lightweight and durable bicycle taillight that can be mounted on any bicycle, children's bicycles, adult bicycles, handlebars, seat posts, dog collars or anywhere else. It can also be used as a helmet light, backpack light, warning light, etc.