I plan to order an Equinox as soon as they become available. I mainly relic and coin hunt. I would enjoy wireless headphones, but not sure if I would really need the gold frequencies. Am I wrong to assume I could use Blue tooth headphones, and if I did would the lag I would experience be noticeable? I have never used wireless before so I'm kind of in the dark on the subject. So my question is if I do not hunt for gold other than jewelry I may happen upon would I still be better off with the 800. Right now I'm thinking that the 600 would fill my needs.