The KICKR HEADWIND is the first ever smart fan, designed with the cyclist in mind. It's Targeted Airflow Pattern mirrors the shape and position of a cyclist's body while riding. The KICKR HEADWIND is sensor controlled so as your speed or heart rate increases, so will the fan speed, there are also 4 speed settings should you want to set your own ideal airflow manually. Or pair to the Wahoo App via Bluetooth for easy fan speed control at your fingertips. With speeds of over 48km/h (30 mp/h), the KICKR HEADWIND will keep you cool during the toughest training sessions.