The CS4237B is a single chip multimedia audio system that provides compatibility with the Microsoft Windows Sound System standard and will run software written to the Sound Blaster and Sound Blaster Pro interfaces. The CS4237B is fully compliant with Microsoft's PC' 97 and WHQL audio requirements. The product includes an internal FM synthesizer and Plug-and-Play external interfaces for Wavetable, CD-ROM, and modem devices. In addition, the CS4237B includes hardware master volume control pins as well as extensive power management and SRS 3D sound technology.