MFJ-296K, SPEAKER/MIC WITH VOL, KENWOOD/WUX

Deluxe speaker microphone for Kenwood Handhelds has a PTT lock (for carrying on long, onesided conversations) -- you won’t wear out your thumb pressing while you talk! It also has a volume control knob that allows you to set it for a super quiet room or noisy environment like a hamfest or banquet.