A built-in accelerometer automatically switches into a constant burst mode when deceleration detected (braking or slowing down).

• COB LED
• Built-in acceleration sensor for Kinetic mode (Automatically turns on High mode when deceleration is detected.)
• Mounts securely to the seat post with the rubber band (12-32 mm)
• Lithium-ion polymer rechargeable battery
• USB rechargeable (Micro USB cable included)
• Low battery indicator
• 3 modes * Charging time: 2h
• Mode memory function
• Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.)