abcGoodefg 3.5mm RHF 617-1N Receiver/Listen Only Earpiece Headsets, Advanced Nipple Surveillance Earphones with Audio Air Tube for 2-Way Radio Transceivers and Radio Speaker Mic Microphone (1 Pack) Fits two-way radios, radio speaker mics, MP3 players and similar devices with 3.5mm connector. Compatible with Motorola, Kenwood, ICOM, HYT Midland Alan Radios that has a standard 3.5mm jack socket. Also work with some mobile phones with 3.5mm jack socket including Iphone, blackberry etc, MP3 and MP4 players. 3.5mm plug (standard headphone jack) with Acoustic Tube with metal clip. Listen/Receive Only Covert Acoustic Tube Earpiece Headset.