Use Them Legs!
★These support legs help you attach and detach your truck from a trailer using R/C commands, encompassing not only attachment to the coupler, but also motion of the support legs. ★4-channel R/C equipment, a servo for the coupler, and three R6/AA/UM3 batteries are separately required. ★Includes a motor for support leg motion, pre-wider micro-switch, die-cast rack, and aluminum pinion parts.
Everything you need (minus servo) to allow you to drop the legs and unhook your trailer by a 4 channel radio. Retractable leg motors run on 4 AA batteries (not included), you mount under trailer.