WhisperRoom MDL 4242 S single-wall soundproof booth with the door open, showing the 3.5' × 3.5' interior, acoustic foam panel, and upper LED lighting.
WhisperRoom MDL 4242 S single-wall soundproof booth shown with the door closed, featuring a front window, modular exterior panels, and interior acoustic foam visible through the glass.
Side view of the WhisperRoom MDL 4242 S, a 3.5' × 3.5' single-wall soundproof booth with the door open, showing its modular exterior panels and entryway.
Rear exterior of the WhisperRoom MDL 4242 S single-wall soundproof booth, showing the integrated ventilation system and modular rear panels.
Top-down floorplan of the WhisperRoom MDL 4242 S single-wall sound booth showing the 40" × 40" interior dimensions and ventilation layout.

MDL 4242 S

$5,595.00
$5,595.00
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DETAILS

The MDL 4242 S is a 3.5' x 3.5' single-wall WhisperRoom® soundproof booth designed to deliver dependable noise reduction in a compact, space-efficient footprint. Its modular construction, durable materials, and consistent acoustic performance make it a practical solution for residential, commercial, educational, and production environments where controlled sound is essential.

WhisperRoom booths have been used in thousands of professional, residential, and institutional settings for more than 35 years, offering long-term reliability and predictable acoustic performance.

This model provides moderate isolation and a comfortable interior for individual focused work, voice recording, testing applications, and other noise-sensitive tasks. It balances portability, acoustic control, and upgrade flexibility for evolving needs.

Key Features

  • Single-wall isolation suitable for environments requiring moderate sound control.

  • Compact 3.5 ft by 3.5 ft footprint ideal for small rooms or limited floor space

  • Modular panel system allowing door, window, and ventilation placement flexibility

  • Upgradeable to Enhanced (double-wall) isolation for great sound control

  • Compatible with a wide range of Options and Accessories for specialized use cases

  • Non-permanent, modular construction that can be assembled, disassembled, or relocated

  • Straightforward assembly with individually boxed components for easier handling

  • Integrated ventilation system for steady airflow during extended sessions

  • Two cable passages for clean and flexible equipment routing

  • Includes two 2 ft by 4 ft acoustic foam sheets for initial interior treatment

Specifications

Feature Detail
Exterior Dimensions 3'8" × 3'8" × 6'11"
Interior Dimensions 3'4" × 3'4" × 6'8"
Weight 555 lbs
Door Window 12" × 30"
Ventilation Systems 1
Cable Passages 2
Included Acoustic Treatment (2) 2' × 4' sheets
Floor Space 12.25 sq ft
Ventilation Clearance Ventilation adds approximately 5.5"

Shipping and Assembly

All components are shipped individually boxed for easier handling and placement. Most orders are processed and ready to ship within 48 hours. Freight charges are calculated during checkout. The booth assembles with standard tools and is designed to be set up in a short period of time.

Important Notes

Some photos show optional accessories such as interior lighting or additional window configurations. These items are not included in the base model.
Manufactured in the USA.