AutoStop, Braking for the vehicle being towed !
You can enjoy greater safety and avoid rapidly wearing out the brakes on your RV by employing the innovative AutoStop system on the vehicle being towed. It features a special hitch that senses when brakes are being applied on the RV and promptly engages the in-tow car's brakes.
The device features a cable that attaches to the brake pedal of the in-tow vehicle, which applies pressure to the pedal as required ( just like there were someone behind the wheel ) . There are no hydraulic lines, ect., to hook up...leaving the vehicles brake system untouched. It's great !