Logitech Clearchat COmfort Black Over the Ear USB Headset | Reverb
Logitech USB H390 with Microphone Headset - 8ft, 20Hz-20kHz Headset Response, 100Hz-10kHz Microphone Response, USB 1.1 and 2.0 Compatible - 981-000014 at TigerDirect.com
Logitech ClearChat Wireless USB Headset - Black (OEM) - Newegg.com
Best Buy: Logitech ClearChat Pro USB Headset 981-000010