RAVEMEN FR300 Compatibile con Garmin/Wahoo Bike Computer, 300 Lumen Nero

(Green: 40%-100%; Red: 5%-40%; Blinking Red: less than 5%). It also has an auto on-off function to save power. 【Lightweight with Lanyard】Weighing only 75 grams/ 0.17lbs (when the lanyard's taken off), FR300 is compact, sleek and IPX6 waterproof.

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