Amazon.com: Retevis MK001 Microphone Compatible with Kenwood Mobile Radio NX-700 NX800 NX-920G TK-768 TK-780 TK-8160E3 TK-8189E TK-630 TK-730 TK-760 Mobile Radio Remote Speaker Mic 8-Pin(1 Pack) : Electronics
HQRP 2-Pin PTT Speaker-Microphone and Earpiece Mic Headset for Kenwood TK-3230K TK-630 TK-730 TK-830 - Walmart.com