The Aquascape Smart Control Receiver Large is required to run the Aquascape SLD 5000-9000 Adjustable Flow Pond Pump, allowing you to control your pump from anywhere using the Aquascape Smart Control App. The specially designed receiver makes it easy to connect your pump to your smartphone or tablet, allowing for a variety of wireless control functions, including flow adjustment and customized scheduling. Connecting your device to the Aquascape Smart Control App is quick and easy, simply plug in your pump, pair the receiver to your device, and enjoy. The smart receiver also includes an integrated control panel with digital numeric display and quick-and-easy flow adjustment. The receiver includes a weather-proof, quick-connect fitting for quick and secure setup. The Aquascape Smart Control Receiver Large is only compatible with SLD 5000-9000 Adjustable Flow Pond Pump. An optional Universal Remote for Adjustable Flow Pumps (Item #45041) is available separately, allowing for wireless pump control without the use of a smartphone or tablet. The Smart Control Receiver Large is compatible with iPhone and Android operating systems and adequate wireless coverage is required (2.4 GHz supported). The Smart Control Receiver Large is backed by a 3-year limited warranty to ensure years of reliable use.