AccuAir's e-Level+ is AccuAir's most popular air suspension management system. Coming standard in all Starter, Premium, and Ultimate Packages, the e-Level+ is the basis for most of AccuAir's products. The kit includes the e+ Connect ECU+, wireless switch box, and the e-level+ app. The 5.0 Bluetooth included with this kit allows for better performance and reliability when compared to other kits. You will also get over-the-air updates to keep your software up to date at all times. To help give your setup a more customized look, the ECU will allow you to choose different colors for the RGB backlighting. If you are using the e+ Height sensor upgrade, you will get a visual display of your height % in the e-Level+ app. Use of the e+ Height will also allow for this kit to automatically learn how to adjust for your vehicle through automatic calibration. Installation is easy with the plug-and-play wiring harness.