●Product 1: Wheel-on design sets up with two easy clicks and securely locks in place ●Product 1: Measures speed, power and cadence ●Product 1: Virtually silent flywheel lets you ride without disturbing others ●Product 1: Works with popular third-party training apps such as Zwift and Tacx ●Product 2: The speed sensor 2 attaches to the hub of either wheel and self-calibrates with your Edge cycling computer or compatible Garmin device to give you accurate speed and distance at all times ? even without a head unit..Control Method:Application.Special Feature:Bluetooth. ●Product 2: The cadence sensor 2 fastens to any size crank arm and measures pedal strokes per minute so you can get the most out of your training. ●Product 2: Send live speed, distance and cadence data to compatible training apps or displays by using ANT and connectivity and BLUETOOTH Low Energy technology. ●Product 2: The odometer feature ? for the speed sensor only ? tracks your distance to help plan for bicycle maintenance.