This model has 14 fixed manual speeds or automatic variable speeds with a reverse switch that sets fan blade direction, a rain sensor with on/off switch, a radio frequency handheld remote with cradle for traveling or fixed wall operation. The handheld remote will activate fan. On automatic speed mode blades will automatically turn on, off, increase or decrease speed to maintain the user's temperature choice. The manual speed mode allows selections of one of the 14 fan blade speeds or off. Vent lid has lifetime guarantee. From ease of installation to ease of operation, this model is the ultimate Fan-Tastic Vent.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov