The wireless remote controller pairs automatically to the main drive unit & must remain within 10-15 feet of each other to maintain this connection 👍
The remote is powered by a replaceable CR123A battery that lasts for a year or two! Note: always use quality, name brand batteries.
The trigger wheel is used to control the variable speeds in both directions!
The remote controller and the main drive both house electronics and are not weather / waterproof and must be taken inside when not in use.