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Dual-channel wireless microphone ECM-W3
$279.99
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$279.99
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- Dual-channel wireless microphone for high-quality digital recording
- Communication is possible at up to 492 ft (150 m)2
- High signal-to-noise ratio (S/N) microphone units
Features
Dual-channel wireless microphone for high-quality digital recording
The ECM-W3 comprises two microphone-transmitters featuring high signal-to-noise (S/N) ratio microphone units, and a dual-channel receiver. The transmitters and receiver process audio digitally and transmit it wirelessly, allowing the capture and recording of two speakers' voices with superb clarity and low noise.
Digital sound recording with superb quality
High-quality digital sound recording
High signal-to-noise ratio (S/N) microphone units are integrated into the two combined microphone-transmitters, enabling clear voice recording with low noise.
High-quality dual-channel digital transmission
Connecting the dual-channel receiver to a camera1 from Sony that supports the Multi Interface (MI) Shoe, such as one of the α™ series digital interchangeable-lens cameras or vlog cameras, allows the digital audio signal output from the receiver to be recorded directly by the camera, enabling high-quality sound recording with minimal noise contamination.
Noise-suppressing filter functions
A noise cut filter using digital signal processing to effectively remove noise, and a low cut filter that reduces noise in the low-frequency range, are provided on the microphone side. Less noise removal is needed post-production, making workflow more efficient.
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- Some models that support the Multi Interface (MI) Shoe, such as the RX1R II and ZV-1, do not provide power via the MI Shoe.
- Approximate distance when the microphone is visible from the receiver. This varies depending on the surroundings and radio wave conditions, such as the presence of metal, people, or other obstacles or reflective surfaces.
- LC3plus is the supported audio format in ECM-W3
- The Mode switch (SEP/MIX) of the receiver must be set to [MIX] mode when you use two microphone-transmitters.
- Available only when connected to a USB Audio Class 1.0 compatible device. Even if the device is USB Audio Class 1.0 compliant, a separate conversion adaptor may be required for connection depending on the device.
- Not guaranteed to be 100% dust and moisture proof. Performance may vary depending on the body to which the unit is attached.
- Power may not be supplied depending on the camera used. Please check the following website for compatible models. https://www.sony.net/dics/ecmw3/ opens in a new window
- Features and specifications are subject to change without prior notice.
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What is the Sony ECM-W3?
The ECM-W3 is a dual-channel wireless microphone system for high-quality digital recording. It comprises two microphone-transmitters featuring high signal-to-noise (S/N) ratio microphone units, plus a dual-channel receiver that transmits audio digitally and wirelessly.
How much does the Sony ECM-W3 cost?
MSRP is listed as $279.99. Given that, these models can go on sale from time to time, and there are several other opportunities to save on price like through their group discounts for education, healthcare and military/veterans (ID.me & Unidays) along with their free loyalty program that gives up to 5% back in points.
How many people can the ECM-W3 record at once?
The ECM-W3 includes two microphone-transmitters and a dual-channel receiver, allowing the capture and recording of two speakers' voices with superb clarity and low noise. This makes it well suited for interviews and two-person conversations.
What is the wireless range of the ECM-W3?
Communication is possible at up to 492 ft (150 m). This is an approximate distance when the microphone is visible from the receiver, and it can vary depending on surroundings and radio wave conditions such as metal, people, or other obstacles or reflective surfaces.
Does the ECM-W3 work with Sony cameras?
Yes. Connecting the dual-channel receiver to a Sony camera that supports the Multi Interface (MI) Shoe—such as an Alpha series interchangeable-lens camera or vlog camera—allows the digital audio signal to be recorded directly by the camera with minimal noise contamination.
Does the ECM-W3 have noise reduction features?
Yes. The microphone side provides a noise cut filter using digital signal processing to effectively remove noise, plus a low cut filter that reduces noise in the low-frequency range. This means less noise removal is needed in post-production, making workflow more efficient.
How do I record two microphones at the same time on the ECM-W3?
When using both microphone-transmitters, the receiver's Mode switch (SEP/MIX) must be set to MIX mode. This lets you capture audio from two speakers together.
Do all Sony cameras supply power to the ECM-W3 through the MI Shoe?
Not all of them. Some models that support the Multi Interface (MI) Shoe, such as the RX1R II and ZV-1, do not provide power via the MI Shoe, so power may not be supplied depending on the camera used. You can check compatible models on Sony's ECM-W3 compatibility page.
What accessories are essential for professional interview shoots?
For clean, uninterrupted interview audio, a dual-channel wireless microphone system like the ECM-W3 helps capture two speakers clearly with low noise. Its high signal-to-noise ratio microphone units and built-in noise cut and low cut filters help maintain consistent quality while keeping the setup manageable.
*FAQ generated on 07/23/2026. Financing, pricing and promotions may no longer apply.