Kenwood KMC-25 Remote Speaker Microphone - Walkie Talkie Two Way Radio
Tactical Dual PTT Speaker Mic - All Kenwood Multi-Pin TK & NX Series – Comm Gear Supply
Kenwood KMC 17 Speaker Microphone from HiTech Wireless.com
HM159SC equivalent Rugged Speaker Microphone with 3.5mm accessory jack for Icom F50/F50V/F60V/F60/F3161DS/F4161DS/F70/F80 Radios. WB# WX-8010 – First Source Wireless
Speaker Mic Antenna, a weird accessory | Ham Radio Blog PD0AC