The greatest games already take you on an adventure into new worlds of excitement, but when you're ready to go even further into the game, you'll want the Sennheiser GSP 350. Delivering an ultra-immersive experience for PC gamers thanks to Sennheiser's high-end acoustic technology and incredible 7.1 Dolby Surround Sound, the GSP 350 lets you advance to the next level in gaming realism. The closed-back gaming headset is powered by Sennheiser's high-end acoustic technology, which delivers Dolby 7.1 Surround Sound via a sleek and intuitive Surround Dongle. Dimensions: 9.8 X 9.1 X 4.1 - 1.35