The receiver would be your r/c mother board everything is controlled by this.

Note the receiver is about the size of a matchbox.

Don't panic about the channel port / plug markings they're fairly standard for all receivers and pertain to r/c planes.


Your ESC [ Electronic Speed Controller/s ] will simply plug into it...the one shown below is a DUAL speed controller it will control 2 motors.



The receiver needs a voltage supply of around 5v.... ( the receiver shown has a Voltage Range: 3.5 - 9.6V )...you could use a small battery pack to supply the receiver.



OR take a supply from your main batteries....we do this with a BEC [ Battery Eliminator Circuit ]



To confuse things even more your ESC... like the Scorpion pictured here ... may have a built in BEC