WhisperRoom, Inc. manufactures portable and modular sound isolation booths for various applications, including vocal or instrument practice, rehearsal, recording, voice over, and broadcasting, to name a few, We have 20 sizes and two levels of isolation, Single and Double-Wall models. A Single-Wall can be upgraded to a Double-Wall at any time. We also have a wide-range of optional features available to suit application-specific needs. We are a GSA vendor and we also offer monthly specials and educational and military discounts. Reducing Sound to a Whisper Since 1990!