MEMTEQ Universal 2.5mm Listen Only Covert Acoustic Tube Earpiece Headset Earphone for Two Way Ham Radio Speaker Mic Microphone, Single Pin 2.5mm Listen Only acoustic tube earpiece for Ham Radio. Features a clear coiled cord for flexible extension, in-ear tube for comfort, and a clip for collar or shirt fastening. 2.5mm male plug easily fits into the speaker jack. High Profession, Excellent Audio Quality, Just Plugs and Listen. Package includes: 1 x Earpiece, 1 x Earbud, 1 x Clear Cable with clip and ear bud