TigerDirect offers the Corsair Vengeance 2000 Wireless 7.1-Channel Gaming Headset, model no, CA-9011115-NA, for $99.99. This $10 mail-in rebate drops it to $89.99. With $4.89 for shipping, that's the lowest total price we could find by $40. Features include 50mm drivers, a noise-cancelling microphone, 40-foot range, battery life of 10 hours, and more. Deal ends October 20.