The Amigo II USB sound card adds a stereo output and mic input to a Mac or PC and converts a standard headset into a USB headset. Because it uses a USB digital connection, the Amigo II isolates the audio signal from the noisy electronics inside a PC or laptop to provide higher-quality sound. With a single USB connection, the Amigo II lets you conveniently add another sound port to your PC or laptop for easy access wherever you go. The stereo output can be used for connecting powered speakers, headphones or an external recording device. The microphone input can be used for connecting an external microphone or the boom mic on a headset. Amigo is a great accessory for laptop owners who want to enjoy high-quality audio on the road or at home.