Get everything you need to accurately measure and track your cycling metrics with the Sunny Health & Fitness Exercise Cycling 2-in-1 Cadence Speed Sensor. Installation is simple, easy, and straightforward so you can stay focused on your sprints and climbs. Bluetooth and ANT technology allows you to connect seamless with any mobile device. Use to track your Cadence / RPM as well as speed for exercise indoor cycling or on the outdoor road. Sync with the Sunny Health & Fitness SunnyFit® APP for the best cycling experience.