✅ Intelligent Brake Taillight: The taillights have a brake detection function. When the taillight detects brake deceleration, the taillight switches to brake light mode. The taillights emit strong light. Improve cycling safety.✅ Colorful Taillights: The taillights have 5 light modes. When the third light mode is activated, the light will flash in a seven-colour breathing light cycle. Seven-color lighting effects provide better light and shadow experience.✅ Smart Induction Tail Light: In slow flash mode and breathing light mode, turn on the rear light switch. If you drive in a dark environment, the taillight lights will turn on automatically.✅ USB Charging: This is a USB charging rear bike light: It can be charged via a variety of USB devices.✅ 2 Installation Methods: It has 2 installation methods. It can be mounted under the seat. It can also be mounted on a vertical tube. It can be installed in any suitable place.