If you prefer a headset, I would consider using Bluetooth with your computer. There is an ever-so-slight latency but does not really degrade the enjoyment. Logitec makes a very workable Bluetooth interface. I would also consider Heil... they are considering a Bluetooth headset. I use their Bluetooth interface on my Heil PR780 and it works as well as connecting directly to the radio.
I have not found the remote setup to be very picky on what I use. I tried a cheap blue tooth headset and it works find.. I think most any USB headset should also be fine.
73.. Ken - VEKC
I am still interested in hearing from anyone who has an idea about how I might establish this two-way audio connection using Wi-Fi. Wi-Fi has the advantages over Bluetooth of better security, greater range, and better penetration of obstructions, such as office walls.
I used my Heil PR-22 into a Behringer Q802USB mixer and declared the USB port as the default Audio device. (This is the same mike & mixer I use to feed audio into the BAL input on the rig.)
I used the local speakers on my HDMI monitor. (audio fed through the HDMI cable) Results were very good, after adjusting Gain, TXEQ, and Processor settings for "Remote-Ragchew" and "Remote-DX" profiles.
Another option would be to use a bluetooth Headset, or a wired headset fed in and out of the regular record/playback jacks on the computer. I have used a $5 computer headset this way and have received good reports. Though not as good as my main mike.
Just make sure that you match your devices sampling rates and audio levels properly so you will get as clean a signal as possible. And remember that nothing you use will be optimum until you properly adjust your levels and TXEQ. That is key to good sounding audio.