The Red Ferret Journal Top 5 Products of the Year 2006: No. 4 – Plantronics Voyager 510 USB Headset. This Bluetooth headset can be used for both cell phone hands-free and for PC based VoIP calls, which makes it an extremely flexible and useful tool. Use it at your desktop to make wireless Skype or SIP calls as required, and then take it out with you as a paired headset for your mobile phone. It’s very lightweight, the audio quality is superb, and it’s a cinch to install. $199.00.