I currently have a Xterra 705 and some great coils.I have a set of wr700 wireless headphones on the way.here's my question.I'm a coin shooter and have access to many 1800s homes. I like this 705 a lot but I can only have one detector.I'm wondering if the wr 700 headphones will work on a e trac?and my next question,as much as I like this Xterra would anyone think it's better to have a e Trac for my hunting in these old homes?my xterra coils are a 15 inch mf, 10.5 Mf, digger and a 6hf. I'm just considering long term and like I said,I can only have one machine.thanks to all,I just found a 1844 large cent a few weeks ago at one home and I'm wanting it all...lol