Sony SS-MSP2 (4) & 1 SS-CNP2 Speakers Surround Sound Set of 5 Black set of 4 is a high-end, compact, wired surround/satellite speaker system with a 5.1 channel configuration and a total RMS power of 120W. It includes four SS-MSP2 speakers and one SS-CNP2 speaker, all with a rectangular shape and black plastic material. The system is compatible with Alexa, Google Assistant, Siri, and Cortana, and has Dolby Digital Plus, Dolby Pro Logic, and Dolby Digital surround sound formats. It is designed for universal and Sony compatibility and has a Type A plug regional fitment.