I've been lamenting the lack of audio quality on VoIP headsets for some time now.
Not only the tinny sound, but the fact that these headsets are fragile, and don't survive a lot of user-to-user adjustment. End result: they are brittle, and they break.
Listen, I am no audiophile. Barely an audio file. But still if only there was a Bluetooth-enabled, VoIP headset with at least some of the audio quality and physical durability of those music headphones out there, then I would (very bad pun alert here) be all ears.

But now Plantronics says they have stepped in to the breach with their new Voyager 510-USB Bluetooth Headset System. It lets you transition between multiple wireless devices,softphones and mobile phones, at a customary Bluetooth-range of up to 33 feet.
Priced at $199, the Vonager 510 will be available in June.
Follow up:
To be perfectly clear, I haven't tried this yet, but I am planning to soon.
The System comes with the headset, a charging stand, USB Bluetoot adapter, travel pouch, USB charging cable, a three-foot USB extension cable, an AC charger and PerSonoCall software that notifies your headset of incoming calls while you move around.
Maybe you want the specs.

OK, the specs:
| Talk Time | Approximately 6 hours |
Standby Time | Approximately 100 hours |
Headset Range | Up to 33 feet (10 meters) |
Headset Wearing Style | Over-the-ear; boom swivels for wearing on either ear |
Headset Weight | 1/2 ounce |
Headset Microphone Noise-Canceling | WindSmart® technology |
Headset Controls | Volume, mute, call answer/end |
Headset Battery | Lithium Polymer |
Wireless Compatibility | Bluetooth (v2.0) devices supporting headset profile |
Supports Adaptive Frequency | Yes |
Hopping (AFH) | to help avoid interference, for co-existence with Wi-Fi/WLAN |
Multipoint Support | Yes |
Plug-and-play USB Bluetooth Connectivity | Yes |
Auto Pairing Interface Via Adapter | Yes |
One-button Headset Interface For Call Answer/End | Yes |
One-button Headset Interface For Remote Call Detection | Yes |
Source: Russell Shaw ZNet