Bully Wireless LED Towing Lights are quick to set up and easy to use, with an antenna that has a 100’ reach, and a transmitter that will connect to a flat 4 or round 7 connector. Magnetic bases securely stick to most metal surfaces. The lights cover the basic functions, brake, and left and right turn signals. Requires 12AA batteries (not included).Durable polycarbonate bases and lens housings.