Patriot Braking Systemproportional And Progressive.all Electric! No Pump, Tank, Or Air Hoses.no Slamming Of The Brake, Moves Smoothly And Proportionally.adjust The Amount Of Braking From Coach.can Manually Apply Brakes From Coach With Wireless Remote.standard Break Away Can Be Plugged In.electric Actuator Instead Of Air Cylinder.built-in Battery.15 Lbs! Half The Weight If Similar Braking Systems.led Display On Both The Brake And Remote.convenient Carrying Handle.comes Standard With On/off Switch.easy Self-calibration With The Push Of One Button.unique, Easy To Use Brake Pedal Clamp.larger Surface Push Pad On Back Of Unit To Seat.