finally, get great audio from your laptop with the logitech v20 notebook speakers. the usb port provides power and digital quality audiono other cables necessary. innovative dynamic headroom technology and 2" maxx highexcursion drivers combined with 3" pressure drivers maximize bass response in a lightweight, portable design. convenient multimedia controls provide easy access to track forward/back, play, stop, mute, and volume buttons that work with many software applications. a protective travel case (included) organizes your cables and speakers. bullet points music as portable as your laptop usb provides power and digital quality audio no other cables necessary lightweight, for maximum portability high dynamic headroom circuitry for greater volume with less distortion 2" maxx highexcursion drivers combined with 3" pressure drivers maximize bass response multimedia controls support: track forward/back, play, stop, mute, and volume with many software applications protective travel case (included) organizes your cables and speakers package content v20 notebook speakers quick start guide integrated usb cable protective travel case