Very cheap system...
BNIB RC4WD XR4 4-Channel 2.4Ghz Transmitter & Receiver
XR4 - A revolutionary advanced radio system at an unbelievable price. The only radio with 3rd and 4th channel 3 position switch, made for DIG swith, winch, light or other custom function. perfect for a scaler....
See here for more details...
http://store.rc4wd.com/RC4WD-XR4-4-C...ver_p_676.html