I have a tri t, 2 dog field 70 with a case that I would sell for about the same. It is probably 8 years old but hardly ever used. Just during hunting probably a dozen days a year, It was around 400$ new.I had to put tape around the base of the plastic antena, there is a spring that lets it flex and the plastic cracked around it. It works fine but you can get antenas and well the batterys I don't know how long they last but they seem fine now. I just don't seem to use it any more. It has the ability to turn on and off with the transmitter and a reostadt level setting. For training I always use my dogtra.