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Single-channel Wireless microphone ECM-W3S
$229.99
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$229.99
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- Single-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
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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-W3S.
- 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.
© 2023 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographical and photographic errors. Features and specifications are subject to change without notice. Sony, G Master, the Alpha logo and the Sony logo are trademark of Sony Corporation. All other trademarks are trademarks of their respective owners.
What is the Sony ECM-W3S?
The ECM-W3S is a single-channel wireless microphone system for high-quality digital recording, featuring one clip-on transmitter with a built-in mic and one receiver. It's a compact, lightweight system well suited for vlogging, interviews, streaming, and mobile use.
How far can the ECM-W3S transmit?
Communication is possible at up to 492 ft (150 m) under line-of-sight conditions. This range varies depending on your surroundings and radio wave conditions, such as the presence of metal, people, or other obstacles and reflective surfaces.
Which Sony cameras is the ECM-W3S compatible with?
The ECM-W3S is designed for Sony cameras with a Multi Interface (MI) Shoe, where the receiver mounts directly and sends digital audio to the camera with no extra cable needed. Some MI Shoe models, such as the RX1R II and ZV-1, do not provide power via the MI Shoe, so check Sony's compatibility list at sony.net/dics/ecmw3/.
Can I use the ECM-W3S with a smartphone or non-Sony device?
Yes. The receiver includes a USB-C audio output for smartphones, PCs, and other devices, plus a 3.5 mm TRS stereo output for cameras and recorders without an MI Shoe. USB audio output is available only when connected to a USB Audio Class 1.0 compatible device, and a separate conversion adaptor may be required depending on the device.
How long does the battery last on the ECM-W3S?
Both units use internal lithium-ion batteries, with the transmitter offering up to 6 hours on a single charge. On compatible Sony cameras, the receiver can be powered directly through the MI Shoe, reducing the need to charge it separately.
Does the ECM-W3S help reduce background noise?
Yes. It includes a Noise Cut filter for digital noise reduction of ambient sound and a Low Cut filter to reduce low-frequency rumble such as wind or handling noise. Its high signal-to-noise ratio microphone unit also helps deliver clean voice capture.
How does the ECM-W3S prevent audio clipping?
The transmitter features a three-position attenuator (0 / -10 / -20 dB) to prevent clipping with louder voices or sources. The receiver also offers a Safety mode that records an additional track at -20 dB as a backup to avoid unusable clipped audio.
Can I connect an external microphone to the ECM-W3S transmitter?
Yes. The transmitter has a built-in MEMS omnidirectional microphone and a 3.5 mm input jack for an external microphone, allowing you to use lavaliers or other mics.
Is the ECM-W3S suitable for outdoor use?
Yes. The ECM-W3S has a dust- and moisture-resistant design for outdoor reliability. Note that it is not guaranteed to be 100% dust and moisture proof, and performance may vary depending on the body it is attached to.
How much does the Sony ECM-W3S cost?
MSRP is listed as $229.99. 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.
*FAQ generated on 07/24/2026. Financing, pricing and promotions may no longer apply.