Please update your browser to take advantage of the latest technology security enhancements to ensure your B&H Shopping experience is as safe as it is enjoyable:
Record two subject interviews and vlogs with your Multi Interface compatible Sony Camera using this Sony ECM-W3 2-Person Wireless Microphone System, thanks to its two clip-on transmitters with built-in microphones and dual-channel receiver with Multi Interface Shoe connection. The system supports the recording of both analog and digital audio signals in both mixed or separate channels for the ultimate postproduction flexibility. The receiver is ultracompact and has integrated 3.5mm TRS and USB-C output ports. Two switches on the side allow you to select separate or mixed channel recording and toggle between analog and digital output modes. Toggle safety track recording to protect against unforeseen interruptions. An attenuator switch on the transmitter units prevents clipping.
Record two subject interviews and vlogs with your Multi Interface compatible Sony Camera using this Sony ECM-W3 2-Person Wireless Microphone System, thanks to its two clip-on transmitters with built-in microphones and dual-channel receiver with Multi Interface Shoe connection. The system supports the recording of both analog and digital audio signals in both mixed or separate channels for the ultimate postproduction flexibility. The receiver is ultracompact and has integrated 3.5mm TRS and USB-C output ports. Two switches on the side allow you to select separate or mixed channel recording and toggle between analog and digital output modes. Toggle safety track recording to protect against unforeseen interruptions. An attenuator switch on the transmitter units prevents clipping.
Bluetooth Wireless Communication
The units communicate with one another via Bluetooth 5.3 low-energy LC3plus codec from up to 492' away. The Bluetooth LC3plus codec ensures low power consumption and low latency while maintaining high sound quality.
Multi Interface Shoe
Use the receiver's integrated Multi Interface Shoe for cable-free connection to your compatible Sony camera. The camera body can supply power to the receiver when attached. Audio is transmitted via direct digital signal for high-quality sound free of transmission deterioration.
Digital Sound Recording
Digital MEMS microphones with a high signal to noise ratio are integrated into each transmitter to capture clear audio with low noise. You can eliminate distortion even further using the built-in noise cut and low-cut filters. The noise cut filter uses digital signal processing to remove interference, while the low-cut filter reduces unwanted low-frequency noise such as wind, air conditioning units, and vibrations.
Clip-On Transmitter
Noise cut filter, low-cut filter
Three attenuation settings: 0, 10, or 20 dB
3.5mm TRS jack for external microphone input
Battery Life
Each component features an integrated lithium-ion battery.
The transmitters can operate for six hours at a time on a full charge.
Use the included charging case to recharge the components when on the go.
Component Design
LED indicators on the receiver and transmitters indicate the communication status and allow you to monitor battery levels. All components are designed to be moisture and dust resistant for outdoor shooting. Included furry windscreens reduce wind noise.
UPC: 027242929128
Sony ECM-W3 Specs
Key Specs
Wireless Technology
Bluetooth 5.3
Diversity
Non-Diversity
Max Operating Range
492.1' / 150 m
Receiver Type
1x Camera-Mount
Number of Audio Channels
2
Included Transmitters
2x Clip-On
Microphone Type
2x Built-In (Clip-On Transmitter)
Included Charging Case
Yes, with Integrated Battery
System
Wireless Technology
Bluetooth 5.3
Diversity
Non-Diversity
Number of RF Channel Frequencies
2
Max Operating Range
492.1' / 150 m
Max Transmitters per Band
2
Encryption
No
Built-In Recorder
No
Timecode Support
No
Mobile App Compatible
No
Receiver
Receiver Type
1x Camera-Mount
Mounting Options
Shoe-Mount (with Included Hardware)
Antenna
1x Internal
Number of Audio Channels
2
Audio I/O
1x 1/8" / 3.5 mm TRS Unbalanced Output 1x Intelligent Hot Shoe
USB/Lightning Connectivity
1x USB-C Female USB Class Compliant
Frequency Response
20 Hz to 20 kHz
Display
Single-LED Indicators Only
Power Requirements
Battery
Transmitters
Included Transmitters
2x Clip-On
Antenna
Internal
Input Level
Microphone
Audio I/O
1x 1/8" / 3.5 mm TRS Female Input
USB I/O
No
Auto-Level/Gain
Yes
Frequency Response
20 Hz to 20 kHz
Sync Method
Bluetooth
Display
Single-LED Indicators Only
Microphones
Microphone Type
2x Built-In (Clip-On Transmitter)
Polar Pattern
Omnidirectional
Maximum SPL
120 dB
Sensitivity
-20 dBFS (at 1 kHz)
Color
Black
Power
Receiver Battery Type
1x Built-In Rechargeable
Transmitter Battery Type
1x Built-In Rechargeable
Transmitter Battery Life
6 Hours
Included Charging Case
Yes, with Integrated Battery
Charging Case
Battery
Lithium-Ion
Charging Input
USB-C
Physical
Environmental Resistance
No
Dimensions
Case: 2.5 x 2.3 x 1.1" / 63 x 58.5 x 29 mm Receiver: 2 x 1.3 x 1.1" / 50 x 32 x 29 mm Transmitter: 2.1 x 1 x 0.8" / 52.5 x 25 x 20.5 mm
Weight
Case: 3.9 oz / 110 g Receiver: 0.9 oz / 25 g Transmitter: 0.6 oz / 17 g
Packaging Info
Package Weight
0.67 lb
Box Dimensions (LxWxH)
5 x 4.7 x 3.8"
Sony ECM-W3 Reviews
Get DJI
By Needs better build
Rated 4 out of 5
Date: 2025-05-11
One of the mics has a popping sound and the clips are not durable.
Great recorded sound quality!
By Mike
Rated 5 out of 5
Date: 2024-08-31
The recorded sound of piano on my Sony A7R4 is great, much better than the analog audio input from my Dji mic 1st gen.
See any errors on this page?
Can I buy ECM-W3S first with one transmitter now ...
Can I buy ECM-W3S first with one transmitter now and when needed to add a second transmitter?
Asked by: Yonghan
No, you cannot add a second transmitter to an existing ECM-W3S. We would recommend buying the two person kit (BH #SOECMW32P) if you see yourself needing two transmitters in the future.
Answered by: Zacky
Date published: 2023-10-20
Can I adjust the audio levels on these mics in ...
Can I adjust the audio levels on these mics in camera when connected via the MI shoe, or are the levels auto only?
Asked by: Brandon
When connected to the MI shoe, the Sony ECM-W3 2-Person Wireless Microphone System with Multi Interface Shoe audio levels can be adjusted in-camera.
Answered by: Michael S
Date published: 2025-04-10
Can I use 2 kits at the same time on 2 cameras ...
Can I use 2 kits at the same time on 2 cameras without interference?
Asked by: Wayne
Yes, it is possible to deploy 2 kits of the Sony ECM-W3 2-Person Wireless Microphone System with Multi Interface Shoe with 2 separate cameras within the same location. The manufacturer recommends a minimum distance of 30 ft. between the systems to avoid interference.
Answered by: Daniel O
Date published: 2025-09-20
is it possible to record 2 people separetly with ...
is it possible to record 2 people separetly with the additional safety track turned on?
Asked by: Ariel
The Sony ECM-W3S Wireless Microphone System is only able to pass two channels of audio via its receiver, so you would not be able to record two separate audio tracks in addition to a safety track.
Answered by: Calvin M
Date published: 2023-10-09
Can you record on the mic without connecting to ...
Can you record on the mic without connecting to the Sony camera? Example on the mobile and computer setup?
Asked by: Alan
The Sony ECM-W3 2-Person Wireless Microphone System with Multi Interface Shoe's receiver can be connected to computers or mobile devices by using a USB-C connection.
Answered by: Calvin M
Date published: 2023-09-29
Will the Sony ECM-V1BMP attach to this even ...
Will the Sony ECM-V1BMP attach to this even though it won't screw in?
Asked by: Jamieson
The Sony ECM-V1BMP, and other microphones using locking connectors, would not be recommended for use with the Sony ECM-W3 2-Person Wireless Microphone System with Multi Interface Shoe.
Answered by: Calvin M
Date published: 2024-04-07
Is the Sony ECM-LV1 Lavalier compatible with this ...
Is the Sony ECM-LV1 Lavalier
compatible with this Sony ECM-W3 ? If not, what lavalier could work properly please ?
Asked by: Alex
Yes, the Sony ECM-LV1 Compact Stereo Lavalier Microphone is compatible for use with the transmitters included with the Sony ECM-W3 2-Person Wireless Microphone System. The transmitters have a standard 3.5mm TRS mic input and can be used with most lavalier microphones that have a non-locking 3.5mm TRS connector.
Answered by: Lisa S
Date published: 2026-04-15
What is the Signal To Noise Ratio? Also, what is ...
What is the Signal To Noise Ratio? Also, what is the Maximum Sound Pressure Level?
Asked by: Rajnesh
Sony has not released the SNR and SPL ratings for the ECM-W3.
