The Main differences is the V80 runs 80 KHz in Hyper Q (Multi F) both the V80 and the V60 runs the same coils, the V60 is the same as the V80 but only runs up to 60 KHz  as far as who is going to be selling them in the U.S I have only heard of one so far which is Andy Sabisch whom is also one of the testers of the V80, but I am sure there will be other dealers HYPERQ： Transmit multi essential frequencies ranging from 7 to 80kHz to the ground, simultaneously. Higher detection