Newegg offers the SteelSeries 7xB Wireless Gaming Headset for Xbox 360 in Black, model no. 61262, for $29.99 with free shipping. That's $5 under our mention from two weeks ago and the lowest total price we've seen. (It's a current price low by $10; most merchants charge $90 or more.) These feature 50mm drivers, interchangeable ear cushions, up to 32 foot range, and retractable mic.