Outlet Mp3 via eBay offers the open-box Logitech H600 Wireless USB Headset, model no. 981-000341, for $31.48 with free shipping. That's $2 under our mention of an open-box model in March and $23 below the lowest total price we could find for a new one. It features a noise-cancelling microphone and wireless range of up to 33 feet.
Note: It may be missing the original packaging.