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Get this Logitech G930 Circumaural Wireless Gaming Headset for $79.99 plus free shipping at Newegg. This is the lowest price we found by $20 and the only place we found these headphones for under $100 (with free shipping). Dolby technology delivers 7.1 surround sound in 360-degree soundfield and they have a frequency range of 20Hz–20KHz. The headset operates on 2.4 GHz RF and has a built in mic. There is no sales tax (except in CA, NJ, TN).