for a little more than 100$ I was able to get a sennheiser boom headset, ( sllightly used) ... HMD 280 ( the d is for dynamic mic)... work great on the k3.... ( and my icom)... At 02:15 AM 11/26/2007, Simon Brown (HB9DRV) wrote: >I use good Sennheiser headphones - I like to listen to the audio >from the radio without additional signal modifications. > >You