Kenwood ProTalk KHS-25 is a single ear ring receiver with a flexible boom mic
Amazon.com: R SPIDER WIRELESS Two Way Radio Earpiece with PTT Compatible with Kenwood 2.5mm+3.5mm 2-Pin Walkie Talkie Headsets Single Wire Mic Headphone : Electronics
Motor Genic Finger PTT Motorcycle Helmet Headset MIC for Radio Kenwood Retevis TYT Baofeng - Walmart.com
Kenwood KHS-10-OH Hvy-duty noise reduction over-the-headset w/ noise canceling boom mic & in-line PTT (Black)
Tebru PTT TCI Headset, Headset PTT for Kenwood,K Head Headset PTT TCI Round Waterproof PTT for Walkie Talkie Fit for Motorola for Kenwood - Walmart.com