Easy Wireless Installation and Pairing: Our wireless magnetic trailer taillight set is easy to install and set up. For the first time, press and hold the power button on both lights simultaneously to pair them. Equipped with a 7-pin, 2.4 GHz transmitter. Find a vehicle with a trailer connector, plug in the transmitter, press the engine start button, brake, and press and hold the white power button on each light until the low-intensity LED flashes 3 times. Find a vehicle equipped with a tow hitch, plug in the transmitter, press the engine start button, brake, and hold down the white power button on each light until the low-intensity LED flashes 3 times. Long-lasting Battery and Fast Charging: With a 3.7V, 2000mAh battery, these lights offer plenty of operating time. They can last up to 10 hours on a full charge, 5 hours at 50%, and 2 hours at 25%. Charging time is only 2 to 2.5 hours, and standby time is 20 hours. Input voltage is 5V and transmitter voltage is 12V. The package includes a charging adapter and a USB cable for convenient charging. A Complete Package with Everything Essential: 2 waterproof LED flashing lights, 1 charging adapter, 1 USB cable, 1 7-pin 2.4 GHz transmitter, an instruction manual, and a carrying case. The complete package allows you to use your new taillights immediately, and the installation and operating instructions are clear. Versatile Accessories for Multiple Applications: These taillights are versatile and suitable for a wide range of vehicles and equipment. They are suitable for trailers, horse trailers, tractors, boat and jet ski trailers, bike racks, etc. They can be switched from one vehicle to another in seconds, making them a practical choice. Whether you are towing a boat for a weekend trip or using a trailer for work, these taillights can meet your needs.