Updated Model: Audio Cable now packs within unit for easier portablity! Compact speaker with built-in resonator expands to provide deep, full-range sound Connects to iPod, iPhone, notebook computers, MP3 and portable CD/DVD players, hand-held games and more Ideal alternative to headphones to enjoy and easily share music and other audio Built-in rechargeable battery provides hours of use Windows and Mac compatible - no drivers or power supply required USB Standard A male to USB mini B male, 3 cm (5 in.) 3.5 mm stereo, 6 cm (2.5 in.); built-in Lifetime Warranty