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.