YES, Gary, they can be sent in and converted to "CTX-style."  $20 for the conversion.  And, Steve H., you can also buy the leather ear pads for them, so that you can replace your old/cracked ones, for $20.  Contact John Smith (the maker of the phones) -- johnsmith55@bellsouth.net.   Leithan, thanks for posting this.  Way back, when I used to use a Minelab Explorer, I was using the supplied Koss UR-30 headphones, and doing OK with them.  But, I was advised to get a set of Pro Golds