The Tamiya 70106 4-Channel Remote Control Box uses two D batteries (not included) to control up to fours motors at a time. This is a kit, so assemly is required.
The 4-channel remote control box is a great way to control Tamiya motors and gearboxes, which you can use with other Tamiya products to build your own robot or mobile project. The control sticks have a self-centring function which automatically moves them back to the neutral position. The cables that attach to the motors are 120 cm (almost 4 feet) long.