RAYPAL RPL-2266 USB Rechargeable COB LED Bike Taillight with Handlebar Mount

1. Rechargeable lithium polymer battery(3.7V 500mAh)
2. Quick release rubber band handlebar mount(fits dia. 12-32mm)
3. 5 modes: Standard / High / Over drive / 50% Flashing / 100% Flashing
4. Water resistant
5. Low battery, charging and fully charged indicator
6. Automatic fully charged cut-off system