tough question for a newbie. i got Acoms Techniplus 27Mhz AM, 2 channel.
In the box there was one servo and the receiver. It came as a kit with my TT-01E. The existing servo is the Acoms AS17 and the receiver is Acoms again 2Ch
27MHz AM Mini receiver.
Gotta admit the controller and receiver kit is kinda dodgy because it tends to behave oddly even at a couple of meters away and I have to extend the antenna to get it to behave. The batteries are fully charged by the way.
The other issue I got is that if I do lots of quick manoeuvres it kinda gets confused and then with the controller idle i can hear the servo doing lots of tiny movements and the motor trying to go forward or back.
I don;t think it can keep up with my driving skills