AirREX wireless controller (wireless switchbox) for 4 or 8 solenoid air suspension system (solenoid valves not included). Use with any Air Solenoid Valve; SMC, Airlift, Accuair, etc. Note this works as a manual remote controlled switchbox. There are NO SENSORS and NO PRESETS available.AirREX Wireless Switchbox - YouTube. The item "AirREX Wireless Switchbox Air Bag Suspension Controller Switchspeed remote AVS" is in sale since Thursday, November 26, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Lower Kits & Parts". The seller is "noliftshift" and is located in Los Angeles, California. This item can be shipped to United States, Canada.