I don't see them listed on RadioShack.com, but I know DL used to hand out headsets that were 2-prong w/ a 2-to-1 prong adapter. It seems now they've gone the opposite way (1-prong w/ 1-to-2 adapter) but maybe some nice FTer with a pair lying around will send you their adapter? I would if I still had one... and if I come across one, I'll PM you.