AIR LIFT 72000 Wireless Air Leveling Compressor Easiest installation of air compressor for air springs ever with no lines or wires to the cab Wireless handheld unit for convenient operation in or outside vehicle Includes compressor and manifold and control box Inflate and deflate each air spring independently to different pressures perfect for users with uneven or top-heavy loads. With two user-defined memory buttons, WirelessAir can remember your frequently used settings Exclusive two way communication for advanced air system diagnostics