The SwitchSpeed Controller offers all of the standard functions that you've come to expect from a traditional switchbox, but that is where the similarities stop. AccuAir's proprietary Advanced Burst-Control Technology allows you to choose between three different modes of adjustment; Precise/Moderate/Full Speed. The burst speeds for each of these modes are user-tunable to achieve improved precision from even the largest valves on the market. Although the SwitchSpeed does not offer preset heights like the e-Level Controller, it can easily be upgraded to the e-Level system down the road. Handheld or mountable, the SwitchSpeed Controller is available in black-anodized or nickel-plated aluminum and gives full manual control over each Air Spring individually as well as front and rear Air Spring control in "pairs'. A yellow glowing ring around each button clearly indicates the current valve speed. The "All-Down" button fully deflates the vehicle for parking at your currently selected speed. Every button offers a "crisp" tactile feel and is backlit with crystal white LEDs for clear daytime and nighttime operations. A 20 ft Mini-USD cable provides communication to the ECU and plugs into the controller in either the bottom or the rear. The SwitchSpeed Controller comes with a built-in compressor control feature that is enabled once the optional tank pressure sensor is plugged in.