Standard 2.5mm plug, 1.2m cable radio earphones. I found these in the closet while tidying up. I don't plan to use them, so I'd like to offer them to someone who will! Unused and unopened, but please understand that these are second-hand goods before purchasing. - Model: DMH-22 - Plug size: 2.5mm - Cable length: 1.2m - Type: Standard type Thank you for looking.