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

COB LED
Built-in acceleration sensor for kinetic mode (automatically activates High mode when deceleration is detected).

Mounts securely to seat post with elastic (Ø12-32 mm)
Rechargeable lithium polymer battery
USB rechargeable (Micro USB cable included)
Low battery indicator
3 modes * Charging time: 2h
Mode memory function
Automatic battery saving (The mode automatically switches to flashing when the battery power runs low.)