The 49n Ultra Doppler USB Rechargeable tail light provides high visibility with super-bright LEDs that mount in seconds thanks to its highly versatile IPX3 waterproof-rated silicone body. The Ultra Doppler is USB rechargeable, saving money while reducing your footprint.

Ultra Doppler Tail Light Specifications
- 3 super bright LEDs producing 7 Lumens
- 4-Modes
- 3 Strobe patterns
- 12 Hour burn time
- Steady on 9 Hour burn time
- Cable free integrated USB 2.0 charging
- 180 Side visibility
- IPX3 Waterproof rating
- Quick release, multi-mount silicone body
- Red low-battery indicator
- Green fully charged battery indicator
- 2 Hr charging time
- Fits all bar and seatpost diameters
- Black body, red lens
- 40 grams