Abstract: Ever heard of gear for headphones? Come meet the GC220 USB Sound Card Dongle by Liberty Gamer. Powered by exclusive algorithm fine-tuned by Bongiovi Acoustic Labs, the global pioneer in 7.1CH DPS audio technology, it can boost your headphone performance instantly. Enchant any of your 3.5mm headphones with 7.1 channel audio much desired by gamers. It's a secret cutting-edge tech you shouldn't miss.