Microsoft Store offers the Turtle Beach Ear Force X42 Wireless Gaming Headset, model no. TBS-2270-01, for $79.99 with free shipping. (Amazon charges the same.) That's the lowest total price we could find by $50, although we saw it for $20 less in April. Features include a 2.4/5GHz dual-band WiFi connection, Dolby surround sound, 50mm speakers, frequency response of 20Hz to 20kHz, microphone, and more. It requires two AAA batteries (included).