Prodigy Brake Controller - The most advanced and intelligent approach to trailer brake controllers! Easily and effortlessly stop your towed trailer without manual leveling while Prodigy™ constantly adjusts itself to the position of the tow vehicle. Self-adjusting sensing device allows for easy, flexible installations. Digital display depicts voltage delivery to trailer during braking. The "boost" feature gives you the ability to apply more initial trailer braking power when towing heavier trailers and allows trailer to slightly lead a braking event. Unit gives a visual warning if trailer connector becomes disconnected. Includes pre-assembled wiring harness, mounting bracket and pocket mounting kit. For 2, 4, 6 and 8 brake trailers.