Usb Rechargeable Bicycle Brake Sensor Light Rear Warning Lan Tri-color LED beads, intelligent coding, intelligent power management, manual mode of the shutdown state of the single switch, power indicator light for 2 seconds, high-precision sensors, depth algorithm, a slight brake tail light can also be quickly detectedManual mode / automatic mode / double-click to switch1: When the taillight is in the working state, a quick double click on the switch to switch between manual and automatic mode, the2: When the taillight is in automatic mode, the green light flashes on when the button3: When the taillight is in manual mode, the button green light goes off.35 hours long working timeLong light 10 hours, breathing flashing 12 hours, slow flashing 18 hours.Fast flashing 18 hours, rhythm flashing 18 hours, ECO fast flashing 35 hours.Slope correction, accurate reminder.The tail light can be corrected horizontally according to the different angles of the seat post in the riding up and down broken sections, according to the horizontal correction, always keep the braking accuracy.Precise movementWhen the surrounding light is very dark, the tail light will flash immediately when you move the bike slightly.If the bike is not moved within 45 seconds, the taillight will automatically go out.Optimize the program algorithm to filter the small bumpy sections with small shaking bikes.When crossing big potholes and damping zones, it will still activate the brake warning.