The Grandmax Slim Tweaker Speaker (Black) is a single unit ultra portable USB sound bar to take Home Theater experience anywhere on the go. The speaker is the ultimate accessory for laptop and netbook computers due to it's ultra slim size, easily slip it to your laptop bag. It is powered by standard USB connection eliminating the need to bring additional power adapters. With it's digital audio sound, it enriches the entertainment experience for mobile people. And it is finely crafted with brushed aluminum metal casing for durability and quality.