This Geek Squad Certified Open Box product: Has been thoroughly tested and certified by a Geek Squad agent Is in mint condition and verified to be cosmetically flawless Includes a full warranty and all its original accessories Qualifies for Best Buy's no-hassle return policy Product Information: 3.1.2 channel configuration provides an engaging audio experience Three front-firing speakers and dual up-firing speakers deliver clear dialogue and immersive, spatial audio effects for a truly cinematic experience Wireless subwoofer (included) delivers deep, powerful bass Bluetooth connectivity lets you easily stream music and audio wirelessly from different compatible devices Dolby Atmos and DTS:X together enhance the overall listening experience by making sound feel realistic