Kenwood KMC-21 Remote Speaker Mic with PTT fits the TK-2400, TK-3230, TK-3400, NX-240 and NX340 series radios.
Amazon.com: TWAYRDIO KMC-35 Standard Dynamic Mobile Radio Microphone (RJ45) Replacement Handheld Speaker MIC for Kenwood NX700 NX800 TK8180 TK7180 TK7360 TK8160 : Electronics
Kenwood KMC-55W IP67 Submersible Remote Speaker Mic with In-Line PTT Mic for ProTalk NEXEDGE NXP500 series radios. Single locking pin model.
KMC Radio 1 (@KMCRadio1) / Twitter
Amazon.com: Kenwood KMC-45 Military Spec Speaker Microphone with Earpiece Jack : Electronics
Kenwood KMC-49 Speaker Microphone with Antenna Connector
Microphones • KMC-41D Features • Kenwood Comms
KMC Hyundai / Kia 961410-1F100 AM FM CD Digital Audio Car Stereo Radio | eBay