Tekonsha Prodigy P2 Electronic Brake Control f/1-4 Axle Trailers - Proportional [90885]Prodigy P2 Features: Reverse battery protection for both vehicle and breakaway Designed to work with electronic over hydraulic brake systems Numerous mounting options including 360 degree vertical rotation Digital display depicts voltage delivery to trailer during braking No level adjustment necessary it adjusts itself to varying terrain as you drive Great for backing into tough spots! Works proportionally in reverse with the ability to disable when