Compatible with Bluetooth� SMART sensors Customizable display to show only the functions to read, with programmable middle and row displays Compatible with Bluetooth� SMART sensors : Chest strap heart rate sensor HR-12 (Not included), integrated speed cadence sensor ISC-12 Automatic 2nd bike recognition (sensor & tire size) Import a summary of ride data and upload to websites Very large display in three rows ClickTec� button interface Programmable odometer *An optional or third-party Bluetooth� SMART heart rate sensor is required for heart rate measurement Digital Wireless 11 Black Bluetooth Smart