You have quite a few options.
You can wait for the new Deus headphones. I include a picture of what they will look like. The problem is they have a built in controller and will cost you about 475.00. Before you faint you should realize that if you already have the large coil you can purchase these and basically have two detectors.
Chefphones makes a full headphone that your existing controller can clip to. Here is the link
http://www.ebay.com/itm/CP6-Headpho..._Measurement_Equipment_ET&hash=item3f20762bf8
Or you can wait for a little controller clip. The existing controller will clip on it. It has a 1/4 inch headphone jack on it. Put your controller on it and plug in any headphones you want. I prefer earbuds myself. I include a picture of it.
I should mention that very soon these new headphones and the yet to be released 11 inch coil will be options with the purchase of a new Deus. And as you can see the new headphone pics are from Garysdetecting.