Jabra has a similar USB dongle (Jabra Link), but I haven't used it yet.
Keep in mind: Bluetooth audio _sucks_ for calls, it's way lower bitrate than normal music-mode bluetooth audio.
Bluetooth headsets are impressively awful still. Even when they're really good they still fail in surreal and unexpected ways (ignoring all the problems I have pairing them to my laptop). Listening to an audiobook on the beach would regularly have problems talking from the phone in my pocket to the headset if I was laying down on my back or leaning on a wall. I've also recently moved near a railway line and whilst I don't get disturbed by the trains, 8 seconds before they go past I get a blip in my headphones which is screamingly annoying. There are still a stunning amount of upsides for me personally; I'm not sure I'd go back to cheap in-ear wired headphones readily at all.
Ex: http://www.rode.com/wireless/wirelessgo
Also old school wireless phones don't have the latency & low bit rate issues of bluetooth either and they allowed you to plug in a headset too.
It really comes down to the design of the system. I don't know how practical it would be although in a dense city or apartment building.
In an ideal world, voice would be over (real) PTSN which has tremendously low latency compared to anything modern. Cost and convenience make that unlikely though.
Not everyone has a stable desk they can run wired ethernet to, but if you can it makes things better.
> (~$100) Buy open-back headphones, which let you hear your own voice normally and are extremely comfortable.
I think I might stick with what I have.