I have a Marshall Receiver (Field Marshall 216.000 to 216.999) Two RT Plus transmitters (both leg mount but one can be switched to tail mount) and one Power Point dog collar. Also comes with carrying case and transmitter tube if you want it All transmitters are in the 216 Freq. This is a great way to get a complete integrated telemetry set up for birds and dog, for a reasonable cost. $550 PM if interested. This set has seen relative little little use. The dog collar has probably run less than 8 hours total.