Bontrager duotrap s ant + / ble sensor

Digital speed and cadence sensor with 2.4 GHz Bluetooth® Smart and ANT + wireless technology; ANT + and Bluetooth® Smart systems allow simultaneous use of the Trip 300 cycle computer and smartphone; For use with all kinds of compatible devices with the Bluetooth® Smart and ANT + wireless technology; Includes Bontrager wheel magnet, crank cadence band, and CR2032 battery; Visit www.thisisant.com for a list of compatible devices; Visit bluetooth.com for a list of compatible devices ;