Navihood B1 Smart Expression Taillight with APP Control

Displays Speed, Cadence, Heart Rate & Navigation Indicators
> App-Customizable Expressions & Text Designs
> Syncs with Navihood GPS Computers
> Large Luminous Surface with Red & Yellow COB LEDs
> Smart Flash Modes with Adjustable Brightness & Blink Speed
> Lightweight Design at Only 25g
> IPX7 Waterproof for All-Weather Riding
> Seatpost or Saddle Rail Mounting Options Available
> Estimated Runtime: 2.5 hrs (120 LM) to 15 hrs (50 LM)
> Includes Anti-Loss Lanyard & Type-C USB Charging Cable