**********It is only a cadense sensor. track and capture cycling Cadence data on your bike computer, it fully compatible with ANT+ equipment such as Garmin EDGE5500/510/520/800/810/1000, Bryton and bike computer*****Easy to install, maintain and move between bikes - no magnets. Cadence sensor easily attaches to your bike's crank arm*****With integrated Bluetooth 4.0 / ANT + transmission technology, support
all the receive equipment*****WaterProof: IPX7, Shockproof/fall
proof: Fall proof within 1.5 m*****Long battery life: Normal use for a year (one hour per day)