I've been following the hearing aid discussion and Ed KL7UW mentioned the 
following:  

"OK, then I will not be buying the CM500; thanks for the 
tip.  Actually happy using my Sony stereo headset, but an integrated 
boom mic could be handy for some kinds of operating.  David-Clark 
aircraft headsets work with my hearing aids, but not as good quality 
as the Sony."

I'm a contester and own a K3.   I've found that the most comfortable/effective 
headset plus boom mike combination is made for pilots and is called a UFlyMike. 
I pilot friend of mine showed me his.  I called the company and they modified 
the plugs to work with my K3.  They now sell them for amateur use. The 
integrated boom mic is plugged into the Bose QC-15 headset for a very 
comfortable long term wear combination.    I've operated in numerous contests 
over the last 18 months with great success.   The mic is an electret and the 
cabling is set up to directly plug in the back of the K3 with 1/8" mono plug.  
In addition, the headphone plug is 1/8" stereo for direct plug in on the back 
of the K3.  If you desire to plug in on the front panel, I use the Heil eight 
pin adapter cable for the mic. Since the mic is an electret, you need to make 
sure you have the mic bias voltage selected on the K3.   The UFLYMIKE also 
comes with a 1/8" to 1/4" stereo adapter plug if you need it.  Audio 
 reports are outstanding and of course the Bose headsets are superb. The boom 
mic is exceptionally well made/precision machined. It sells for $225, the same 
price the pilots pay.     

UFlyMike is at the following website:    

http://uflymike.com

Finally, the only problem I've ever had with the Bose headsets is if there's a 
lot of stray RF in a multi-station shack, you'll get feedback.  If you're well 
grounded, no problems.  

73  

Ed N4OC




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