Wireless Led Rear Tail Lights USB Battery Operated Magnetic Towing Tow Trailer.

[Wireless Strong Magnetic Trailer Lights] The 4-way transmitter and lights have a 100 ft range to reach the back of any trailer or towed vehicle. [Easy to Install] Just plug and play the 4-way connector and attach the LED tow light to any steel body or magnet-friendly surface and start using.

eBay