This Teconsha Electric Trailer Brake Control Unit is the perfect addition to your towing setup. Designed specifically for trailers, this brake controller ensures safe and efficient stopping on the road. With its easy-to-use interface and intuitive controls, you can quickly and easily adjust the brake settings for your trailer.Whether you're hauling a small trailer or a heavier load, this brake control unit is up for the task. Its durable construction and reliable performance make it a top choice for towing enthusiasts. So why wait? Add this Teconsha Electric Trailer Brake Control Unit to your towing setup today and enjoy a safer, more comfortable towing experience. Comes with original instructions, It was working when removed from my truck.