The Wahoo RPM cadence sensor is your sleek little solution for measuring cycling cadence data. It is wireless, magnet-less, lightweight, and easily mounts to your bike&';s crank arm or to your shoe. Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and GPS bike computers. Collecting cadence data has never been this easy.FEATURES:-1 DUAL BAND TECHNOLOGYBoth ANT+ and Bluetooth Smart capabilities allow for a wireless connection to both smartphones and bike computers.2 WIRELESS CONNECTIONNo tangled wires on your bike to connect the sensor to your device.3 SLEEK, LIGHTWEIGHT DESIGNIt only weighs 7 grams!4 CADENCE MEASUREMENTProvides accurate cadence data during your ride5 PELOTON IOS COMPATIBILITYRPM Cadence easily pairs with the Peloton Digital iOS App via Bluetooth to get real time cadence data during your spin workouts.6 MYXFITNESS COMPATIBILITYRPM Cadence easily pairs with the MYXFitness App via Bluetooth to get real time cadence data during your spin workouts.7 TWO BIKE MOUNT OPTIONS(1) mount with double sided 3M tape, or (2) use the silicone sleeve and mount with zip ties.8 SHOE MOUNT OPTIONThe RPM can be worn on your shoe for spin classes or use with multiple bikes9 VISIBLE CONNECTIONTwo LED lights show the sensor&';s device connection (blue) and cadence detection (red)10 REPLACEABLE BATTERYNo charging required! Operates on a coin cell battery for up to 1 years.11 UNIVERSAL FITRPM cadence sensor will fit with most bikes and frame sizesSPECS:-- Part Number: WFPODCAD2 - Physical Dimensions (LxWxH): 1.25" x.75" x 1" - Weight: 7 grams - Battery: CR2032 - Battery Life: Up to 12 months - Water Rating: IPX7 (waterproof up to 5 ft) - Wireless Signal Strength Up to 10 feet