Equipped with Bluetooth 4.0 and ANT dual-band technology, Wahoo Fitness sensors measure crucial cycling data and wirelessly send it to smartphones and GPS devices. -Train with a favorite compatible cycling app including Wahoo Fitness, Zwift, Strava, Map My Ride and many more -Dual Band Technology (Bluetooth 4.0 and ANT ) and Wireless connection -Speed measurement -Hub mount -Magnet-free -Replaceable CR2032 battery