The Wahoo Blue SC Speed and Cadence Sensor BT/ANT+ uses Bluetooth Smart and ANT+ technology to track your cycling speed, cadence, and distance. This can then be paired with your favorite cycling app including The Sufferfest and Zwift, or paired to your bike computer. It's weatherproof, small with a low drag profile, and comes with a rubber band and zip tie mounts. Wahoo Blue SC Speed and Cadence Sensor BT/ANT+ Features Dual Band Technology - Both ANT+ and Bluetooth Smart capabilities allow for a wireless connection to both smartphones and GPS devices Wireless Connection - No tangled wires on your bike to connect the sensor to your device Speed Measurement - Provides accurate speed data during your ride Cadence Measurement - Provides accurate cadence data during your ride Bike Mount Option - BlueSC comes with a rubber band mount and zip tie mount Universal Fit - The Blue SC sensor will fit with most bikes and frame sizes Wahoo Blue SC Speed and Cadence Sensor BT/ANT+ Specifications Dimensions (LxWxH): 3.5 x 1 x 3 Weight: 36 grams Battery: CR2032 Battery Life: Up to 12 Months Water Rating: IPX7 (waterproof up to 5 ft) Wireless Signal Strength: Up to 10 feet Included in the box BlueSC CR 2032 Battery (installed) Mounting Strap Zip Ties Rubber Mounting Base Crank Arm Magnet Spoke Magnet Quick Start Guide Important Product Info Guide