Tracking your fitness has been made easy, get everything you need to accurately measure your cycling metrics with the Sunny Health & Fitness Exercise Cycling 2-in-1 Cadence + Speed Sensor - CB110. Installation is easy so you can stay focused on your exercise. This sensor is Bluetooth and ANT+ enabled which allows you to connect seamlessly with any mobile device. Use this to track your Cadence / RPM as well as your speed during indoor cycling or on the road while exercising outdoor! Two LED lights indicate the sensor's device connection: blue light signifies cadence mode and red light represents speed mode; please refer to the user manual for more details on the lights. Sync with the Sunny Health & Fitness SunnyFit® app for the best cycling experience. 【Connected Fitness Experience】With Bluetooth connectivity, the Sunny Bike Cadence CB110 allows you to connect your bike to the Free SunnyFit App to track real-time workout metrics such as time, RPM, speed, and calories, and get access to 1000+ training videos from world-class certified trainers. Customize your workout plans, explore the world with 10000+ world tours videos, and access exclusive in-app social communities, leaderboards, and other exciting features. 【2 in 1 Cadence Sensor】The Sunny bike cadence can be used for both your indoor cycle and outdoor bike. With one simple click in the app, you can switch between different modes and enjoy the full benefits of SunnyFit. 【REAL-TIME Metrics】Track and view your workout status such as time, speed, RPM, distance, and calories (based on your age, gender, and weight) in real-time by connecting with the SunnyFit App, and get more accurate and useful data that will help you reach your fitness goals. 【EASY INSTALLATION】Simply place the sensor onto the protective, rubberized mat, then wrap and secure it around the bike's crank with the taut elastic bands or cable ties provided for a snug and secure attachment. 【Easy to Use】Two LED lights indicate the sensor's device connection and mode, with the blue light signifying cadence mode and the red light representing speed mode. Lights flash to show the sensor's status: power on, wake up, broadcast, and connect. Please refer to the user manual for full details. 【EASY Maintenance and Long Duration】The Sunny Bike Cadence sensor is very energy-efficient, and the battery can last very long. The user-friendly, unique design makes it very easy to replace the battery, and the sensor is also water-resistant, allowing for peace of mind while riding outdoors. 【WHAT'S INCLUDED】1 Sensor, 2 Rubber Mats, 2 Large Rubber Bands, 2 Small Rubber Bands, 6 Plastic Cable Ties, and an easy-to-follow Instruction Manual. Product dimensions: 3.4 x 3 x 1 inches. 【About SUNNY】For over 20 years, Sunny Health & Fitness has been a premier brand of high-quality fitness products, recognized for our commitment to excellence. Our dedicated customer service reps and fitness instructors stand behind every product to ensure you have the best fitness experience possible.