Sony ECM-W3S Single-Channel Wireless Microphone for High-Quality Digital Sound Recording
- mfr: ECM-W3S
- SKU: ECMW3S

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Product highlights
- Single-channel wireless microphone
- Communication is possible at up to 492 feet (150 m)
- High signal-to-noise ratio microphone units
- Noise-suppressing filter functions
- Multi Interface (MI) Shoe compatible
- A charging case is included in the package
- Safety and attenuator functions
- Microphone audio output by 3.5mm jack
- USB digital audio (48K Hz per 24 bit) output
- Compact, lightweight, and dust-and moisture resistant
Sony ECM-W3S Single-Channel Wireless Microphone for High-Quality Digital Sound Recording
The Sony ECM-W3S consists of a
microphone-transmitter with high signal-to-noise (S/N) ratio microphone units
and a single-channel receiver. Audio is processed digitally by the transmitter
and receiver and transfers them wirelessly, letting the speaker’s voice be
captures with excellent clarity and low noise.
Top-Notch Digital Sound Recording
Thanks to the integrated signal-to-noise ratio microphone units into the
microphone-transmitter, voice recording becomes crystal-clear with low noise.
Top-Notch Digital Transmission
If the user connects the receiver to a Sony camera that supports the Multi
Interface (MI) Shoe like one of the α series digital interchangeable-lens
cameras or vlog cameras, they can use the camera to directly record the digital
audio signal output from the receiver. This enables high-quality sound
recording with very little voice contamination.
Unique Noise-Suppressing Filters
A noise cut filter that uses digital signal processing in order to
effectively remove noise, and a low cut filter that reduces low-frequency range
noises are added to the side of the ECM-W3S. Workflow becomes smoother as less
time is spent removing background noise during post-production.
Compatible with Multi Interface Shoe
The user can connect the receiver to a Sony camera that supports the Multi
Interface (MI) Shoe such as one of the α series digital interchangeable-lens
cameras or vlog cameras without the need of cables, resulting in immediate
sound acquisition and avoiding interference with the vari-angle LCD monitor
even if it is horizontally opened while shooting. This results in better
mobility and freedom to choose different shooting angles.
The Wireless Benefit
The microphone-transmitter and single-channel receiver helps in the wireless
capture of speakers’ voices. With Bluetooth 5.3 (Bluetooth Low Energy) and
LC3plus codecs providing low power consumption, low latency, and better sound
quality, you can record from a distance of up to 492 feet (150 m) in clear
line-of-sight locations. Battery size has also been reduced thanks to the
superior power saving features.
Safety and Attenuator Features
With its safety function, the ECM-W3S can simultaneously record two audio
signals, one at a normal volume while the other 20 dB lower. This reduces the
risk of clipping, common during loud recordings. Additionally, an attenuator
function is provided to let the recording level to be set on three values
depending on the audio volume.
Microphone Input and Output Support
On the microphone’s side is a 3.5 mm mini jack (monaural) to function as an
external microphone input terminal, and on the receiver’s side is a 3.5 mm mini
jack (stereo) that functions as an audio output terminal. Sound acquisition can
also be done through a stereo-compatible lavalier microphone. Sound output can
also be done to devices that are not equipped with a Multi Interface (MI) Shoe.
USB Digital Output from Receiver
The receiver can also transmit digital audio output of 48 kHz per 24 bit
using a USB cable to PCs, smartphones, and also to USB audio input compatible
devices for recording.
Compact and Lightweight Build
Due to the microphone transmitter’s compact and lightweight design, it provides
excellent mobility and portability, making it easy to carry while you’re on the
move or while shooting. They are also resistant to dust and moisture, making
them ideal for the outdoors.
Get Status Notifications
With the LINK lamp, you can know the status between of communication
between the microphone and receiver and avoid recording errors. You can also
know the battery status with the POWER lamps on the microphone and receiver.
Get Battery Assistance
The receiver gets direct power supply from the α series digital
interchangeable-lens cameras or vlog cameras to the receiver.
Backup Charging Case
The microphone-transmitter is accompanied by a small charging case, letting
you continue shooting without getting concerned about diminishing battery
power. It can last continuously for approximately six hours on a full charge.
Wind Screen Included
The included wind screen can be used to reduce the wind noise that may occur
when the microphone is impacted by strong wind or breath. This allows stable
and clear recording of the speaker's voice, even when shooting outdoors.
Specifications
Form Factor | Camera-Mount |
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Primary Applications | For Content Creation, Mobile Journalism |
Polar Pattern | Omnidirectional |
High-Pass Filter | No |
Tone Adjustment | No |
Gain Adjustment | No |
Indicators | Yes |
On-Board Controls | No |
Windscreen | Yes |
Mounting Type | Camera Shoe Mount |
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Bus Power | No |
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Headphone Connector | Yes |
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Shipping and Returns
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