This wireless LED flashing tow bar features amber flashers with auto delay that shut off when your tow truck uses signal or brake lights. Battery-saving taillights only come on when the towing vehicle's taillights are on. Simply plug 7-pin transmitter into your truck's 7-pin connector. Approximately 20-hr. run time per charge. Includes wireless transmitter, 12V DC charge cord and extra ratchet straps.