The 9700 is a portable supplemental braking system that applies a pre-set pressure to the towed vehicle's brake pedal each time the motorhome's brake lights are illuminated - simply push a button to select light, medium or heavy braking. Or set the 9700 to activate only in an emergency break away situation.
The 9700 uses the electrical connections already in place on your towed vehicle (the towed vehicle's electrical harness) to brake when you brake the motorhome - the same electrical signal that activates the towed vehicle's brake lights also activates the 9700.