Bryton Magnet-free Smart Cycling Cadence Sensor with Dual ANT+/BLE Bluetooth Technology for Wireless Data on your Bike Computer and Smartphone

Dual ANT+ and Bluetooth 4.0 connectivity for stable connection with your bike computer and smartphone. No magnet: quick and easy installation with the included rubber bands. Compact design (36.9 × 31.6 × 8.1 mm), lightweight and suitable for all crank sizes IPX7 waterproof, ideal for all weather conditions. Replaceable CR2032 battery, up to 270hrs long life and easy to replace