Sony Electronics Announces the 4th Generation of DWX Wireless Microphones for Elevating Live Event Audio

The DWT-B40 and DWR-R40Q Combine Simple Operation with Reliable Transmission to Provide Clear Sound and Instill Confident Use in a Wide Range of Production Applications

PARAMUS, N.J., Sept. 9, 2026 /PRNewswire/ -- Sony Electronics has announced the DWT-B40 bodypack transmitter and the DWR-R40Q rack-mount receiver, the latest additions to the DWX Digital Wireless Microphone Series, designed to deliver intuitive, simple operability accessible to wide range of users while ensuring advanced transmission reliability. The two new models, DWT-B40 and DWR-R40Q, are expected to be available in March 2027.

Configuring frequencies on wireless microphones has traditionally required specialized expertise and complex procedures. With the 4th generation of DWX Series, however, channel setup and pairing can now be performed through straightforward operations, making the products suitable not only for professional production environments but also for a broader range of applications such as large and small scale studio operations and a variety of live events including theatrical productions, faith-based services, corporate events, lectures and seminars.

Despite the accessible price point, the new series achieves enhanced transmission reliability through improved RF stability and audio transmission over long distances. The DWT-B40 newly incorporates an in-transmitter audio recording function powered by Sony's unique technology, enabling distortion-free backup recording within the transmitter itself* — providing users with peace of mind and a reliable safeguard against unexpected issues on set.

"With the fourth generation of our DWX Series, we are making advanced wireless technology more intuitive and accessible, without compromising the reliability that professional users expect," said Andy Munitz, senior product manager, Professional Audio, Sony Electronics. "The DWT-B40 and DWR-R40Q combine simple operation with robust transmission performance, while the DWT-B40's built-in backup recording provides an additional layer of reassurance for productions where capturing every moment matters."

*Simultaneous transmission and recording is not currently supported in North America.

Key Features of the DWX 4th-Generation Series
Professional-Grade Transmission Reliability at a More Accessible Price Point

This series delivers professional-grade high performance at a competitive price, making it well suited for a broader range of production applications. In terms of transmission reliability, enhanced interference resistance and low-noise RF output waveforms ensure consistent and stable operation even in challenging RF environments.

The DWT-B40 supports a maximum transmission power of 50 mW, based on region, enabling stable long-distance audio transmission without the need for an external power source, and can be utilized at high transmission output in environments that demand long-range transmission.

The DWT-B40 offers flexible audio transmission options tailored to diverse production needs — from settings that deliver exceptional sound quality with low latency, to modes optimized for maximum transmission reliability in demanding broadcast and sports environments.

Meanwhile, the DWR-R40Q employs high-performance RF technology in its receiving circuitry, significantly improving transmission stability and delivering reliable performance even in RF-congested environments. In addition, its 4-antenna diversity mode further enhances transmission stability.

Effortless Setup for Everyone

This series enables frequency configuration and pairing for four channels with just a few simple button operations. This intuitive workflow makes the products easy to operate for any user, allowing operations to begin almost instantly.

The DWT-B40 now supports power supply via lithium-ion batteries (sold separately) and USB, offering greater flexibility and convenience in securing power on location. Condenser microphones can be connected directly to the transmitter, with a +48V phantom power supply also available.

The DWR-R40Q supports 4-channel true diversity reception in a 1U form factor, contributing to efficient use of rack space. It also supports a Dante audio network with an expanded set of four output ports, providing flexible output options that accommodate diverse user workflows while delivering more stable IP connectivity and retaining analog XLR connections to support conventional operations. 

32-bit Float Internal Recording on the DWT-B40 Powered by Sony's Unique Technology

Using Sony's unique algorithm, 32-bit float internal recording provides a reliable backup even in the event of wireless signal interruption*, helping users prepare for audio-related issues on set. The 32-bit float format prevents distortion at any gain level, and combined with Sony's signature clear, low-noise sound, ensures stable audio capture. Recording can be operated directly via the REC button, as well as remotely from the receiver through Cross Remote control. Timecode synchronization streamlines post-production workflows, and data transfer via microSD card is fast and simple.

*Simultaneous transmission and recording is not currently supported in North America.

For more information, please visit pro.sony/DWX.

DWT-B40: https://pro.sony/products/dwx-digital-series-transmitters/DWT-B40
DWR-R40Q: https://pro.sony/products/dwx-digital-series-receivers/DWR-R40Q

About Sony Electronics Inc.
Sony Electronics is a subsidiary of Sony Corporation of America and an affiliate of Sony Group Corporation, one of the most comprehensive entertainment companies in the world, with a portfolio that encompasses electronics, music, motion pictures, mobile, gaming, robotics, and financial services. Headquartered in San Diego, California, Sony Electronics is a leader in electronics for the consumer and professional markets. Operations include research and development, engineering, sales, marketing, distribution, and customer service. Sony Electronics creates products that innovate and inspire generations, such as the award-winning Alpha Interchangeable Lens Cameras and revolutionary high-resolution audio products. Sony is also a leading manufacturer of end-to-end solutions from 4K professional broadcast and A/V equipment to industry-leading 4K and 8K Ultra HD TVs. Visit http://www.sony.com/news for more information.

SOURCE Sony Electronics, Inc.