It provides a variety of input options which include a built-in CD player, a FM tuner, two USB ports, two coaxial inputs, two optical inputs, and phono input. The M102 also supports audio input from Apple iPods and iPhones with harman / kardon's The Bridge III connection dock. Other features include a 65 watts per channel output, gold-plated binding posts, and a VDF display. The speakers consist of a flat panel bass driver and a proprietary MMD tweeter. The harman / kardon MAS 102 is a high quality micro stereo system, a good option for buyers looking for sound quality in a confined space.