Features: 1.Function: The trailer breakaway kit is designed to activate the brake of the trailer when it has disconnected from the tow vehicle. 2.LED Indicator: Trailer brake breakaway kit is equipped with LED indicator light, show the state of system is fully charged, charging or recharge. 3.High Performance: During a separation, the system works with your trailer's electronic brakes to bring it to a stop much faster than it would on its own. 4.Simple Installation: Using an onboard battery attached to the trailer and a switch system connected to both the trailer and the vehicle. 5.Excellent Performance: Professional manufacturing, exquisite workmanship, weatherproof and offer ultimate protection for the charger inside. Specification: Item Type: Trailer Breakaway Kit_x000D_ Material: PP_x000D_ Activates trailer brakes upon separation from the tow vehicle._x000D_ Built in LED battery meter verifies battery charge._x000D_ Led's Indicate: Fully charged recharge or charging._x000D_ Complete System Includes: Box battery charger 7 in; Switch; Built in battery charger charges battery while connected with the tow vehicle._x000D_ _x000D_ During a separation, the system works with your trailer's electronic brakes to bring it to a stop much faster than it would on its own._x000D_ This is done using an onboard battery attached to the trailer and a switch system connected to both the trailer and the vehicle._x000D_ When the trailer becomes disconnected, the breakaway switch is triggered and directs the battery power to the trailer brakes._x000D_ With 12V 5AH built in battery_x000D_ _x000D_ Fitment: Universal fit for 12V vehicle