Wahoo RPM Cycling Speed and Cadence Sensor, Bluetooth / ANT+ All you need for cycling data, all together at once! the Wahoo RPM speed and cadence sensors are sleek, wire and magnet-less solutions for capturing cycling speed and cadence data on your iPhone, Android, and bike computer. Each mounts easily to your bike while dual-band Bluetooth 4.0 and ant+ technology allows for simultaneous transmission of display data on both smartphone and GPS bike computers. Collecting speed and cadence data has never been this easy. - Track and capture cycling speed and Cadence data on your iPhone, Android, and bike computer - Lightweight and easy to install - no magnets. Speed sensor mounts to any bike's wheel hub. Cadence sensor easily attaches to your bike's crank arm or shoe (both mounts included) - Connects wirelessly via Bluetooth 4.0 and ANT+ to your iPhone, Android and/or bike computer - Works with Zwift and trainer road! capture speed and Cadence on your favorite indoor cycling platform - Also works with the free Wahoo Fitness app, Strava, RideWithGPS, MapMyRide, Cyclemeter, and more!