I just now posted a reply on the Garrett's forum, relative to the Radio Shack wireless headphone set #33-1253. Please see my post on the Garrett forum a few minutes ago for more details. I have mounted the transmitter or "dongle" (why that name?) to the left side of my MXT with two-sided foam tape. This wireless setup seems to be what I've been looking for-freedom from those darn earphone wires. The unit costs $60, plus the 12" double male extender, a $4 double female joint, and a reducer fitting to enlarge the small male dongle cord connector to the larger fitting at the rear of the MXT. The tape, extension, fitting and double female joint only cost about $80 (not counting the warranty). Better, more expensive headphones can be had at the Sharper Image ($99 headphones alone) and probably elsewhere. I got the one year warranty just in case. I hope this may help you, but no warranty-express or implied. The dongle IS FRAGILE, so get the warranty ($8 more?). Reggie