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Comica Audio BoomX-D D2 Ultracompact 2-Person Digital Wireless Microphone System for Mirrorless/DSLR Cameras (2.4 GHz, Black)

BH #COBOOMXDD2 • MFR #BOOMX-D D2
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Comica Audio BoomX-D D2 Ultracompact 2-Person Digital Wireless Microphone System for Mirrorless/DSLR Cameras (2.4 GHz, Black)
Key Features
  • For Journalists, Vloggers, YouTubers
  • 2 x Transmitters with Built-In Mic & Lav
  • Ultracompact Dual-Channel Receiver
  • 5-Hour Rechargeable Battery + USB
Designed for mobile journalists, videographers, and vloggers, the black Comica BoomX-D D2 is an ultracompact, true wireless digital microphone system with two microphone/transmitters and one dual-channel receiver. It offers a complete solution for recording dialogue, interviews, and speech with two people talking simultaneously—directly to a mirrorless/DSLR camera or a mobile device.
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Comica Audio BOOMX-D Overview

Designed for mobile journalists, videographers, and vloggers, the black Comica BoomX-D D2 is an ultracompact, true wireless digital microphone system with two microphone/transmitters and one dual-channel receiver. It offers a complete solution for recording dialogue, interviews, and speech with two people talking simultaneously—directly to a mirrorless/DSLR camera or a mobile device.

The ultralightweight BoomX-D D2 consists of two ultracompact clip-on transmitters each with its own built-in omnidirectional microphone and a separate lavalier microphone. It also comes with a tiny receiver that mounts on and plugs into your camera with the included TRS cable. An additional TRRS output cable gives you the option to plug the receiver into any smartphone equipped with a headphone jack.

The system delivers reliable transmission with a clear sound at a distance up to 164'. The built-in rechargeable batteries provide up to 5 hours of operation. Versatile and extremely easy to use with simple controls, the BoomX-D D2 is well suited for content creators of any experience level.

Two Microphones into One Receiver
  • The two-channel receiver allows you to save space on your shooting rig by using a single receiver to simultaneously receive signals from the two mic/transmitters. The receiver features a belt clip, which also doubles as a shoe mount adapter for your camera. In the absence of a smartphone holder, the receiver can also be clamped to your smartphone using the belt clip.
Built-In Mics for True Wireless
Each transmitter is equipped with a built-in microphone and a 3.5mm mic input that accepts the included lavalier microphone. For a truly wireless experience, the transmitter can be clipped on clothing without having to wire yourself or your talent. You can also hold the transmitter in your hand and use it as a handheld microphone. The On/Off switch doubles as a mute button.
Lavalier Mics Included
For a more discreet setup, use the small lavalier microphones, which can be easily concealed away from the camera's eye.
Plug-and-Play and Easy-to-Operate Wireless
  • This plug-and-play system is easy to use. It comes pre-paired at the factory; connect it to your camera, turn it On, and you're ready to start recording.
  • Dedicated gain buttons on the receiver allow quick and effortless adjustment of the signal level for each microphone independently.
  • The receiver and the transmitters have a display that shows signal strength, audio level, mono/stereo configuration, and battery life.
  • You have the option to switch between mono or stereo on the receiver: Recording in mono combines both microphones on both the left and right side of your audio track. Recording in stereo puts one person on the left and the other person on the right, allowing you to isolate each person's dialog and adjust each level individually later in post.
  • The transmitters and the receiver are powered via a built-in lithium-ion rechargeable battery. They can also be powered via USB, even while in use, giving you near unlimited operating time.
Monitor in Real Time
  • If your camera doesn’t have a headphone jack, you can monitor your sound via the receiver’s 3.5mm headphone output while recording to ensure that you are capturing a clean signal.
Easy 2.4 GHz Digital Wireless
  • Whereas typical analog wireless systems are susceptible to interference from TV and radio waves, the BoomX-D digital system avoids that by operating in the 2.4 GHz frequency band, which occupies frequencies beyond those of television, radio transmissions, and UHF wireless microphone systems.
  • The system automatic changes transmission frequency to mitigate noise and dropouts at a line-of-sight distance of up to 164 feet. For optimal performance, environments with limited Wi-Fi/2.4 GHz traffic and minimal physical obstructions are recommended.

Comica Audio BOOMX-D Specs

Key Specs
Wireless Technology
Digital 2.4 GHz
Diversity
Non-Diversity
Max Operating Range
164' / 50 m (Line of Sight)
Receiver Type
1x Camera-Mount
Number of Audio Channels
2
Included Transmitters
2x Clip-On
Microphone Type
2x Built-In (Clip-On Transmitter)
2x Lavalier
System
Wireless Technology
Digital 2.4 GHz
Diversity
Non-Diversity
RF Frequency Band
2400 to 2483.5 MHz
Max Operating Range
164' / 50 m (Line of Sight)
Max Transmitters per Band
2
Latency
< 20 ms (Maximum)
Encryption
No
Built-In Recorder
No
Timecode Support
No
Mobile App Compatible
No
Receiver
Receiver Type
1x Camera-Mount
Mounting Options
Belt Clip (with Included Hardware)
Antenna
1x Internal
Number of Audio Channels
2
Audio I/O
1x 1/8" / 3.5 mm TRS Unbalanced Mic Output
1x 1/8" / 3.5 mm TRS Headphone Output  
Network I/O
No
USB/Lightning Connectivity
1x USB-C Female (Bus Power, Charging)
Gain Range
0 to 12 dB
Display
LCD (Non-Backlit)
Power Requirements
Battery
Transmitters
Included Transmitters
2x Clip-On
RF Output Power
10 mW
Antenna
Internal
Input Level
Microphone
Audio I/O
1x 1/8" / 3.5 mm TRS Female Input 
Bias/Plug-In & Phantom Power
Bias/Plug-In Power is Unspecified by Manufacturer
No Phantom Support
USB I/O
1x USB-C (Bus Power, Charging)
Muting
Off/On Switch
Auto-Level/Gain
No
Frequency Response
80 Hz to 20 kHz
Display
LCD (Non-Backlit)
Microphones
Microphone Type
2x Built-In (Clip-On Transmitter)
2x Lavalier
Polar Pattern
Omnidirectional
Output Connector
1x 1/8" / 3.5 mm TRS Male 
Color
Black
Power
Receiver Battery Type
1x Built-In Rechargeable - 300 mAh
Receiver Battery Life
5 Hours (Lithium Rechargeable)
Transmitter Battery Type
1x Built-In Rechargeable - 300 mAh
Transmitter Battery Life
5 Hours (Lithium Rechargeable)
Physical
Environmental Resistance
No
Housing
Plastic
Dimensions
Receiver:
1.5 x 0.9 x 2.2" / 39 x 22 x 55 mm
Transmitter:
1.5 x 0.9 x 2.2" / 39 x 22 x 55 mm
Weight
Receiver:
1 oz / 29 g
Transmitter:
1 oz / 29 g
Microphone:
Not Specified
Packaging Info
Package Weight
0.96 lb
Box Dimensions (LxWxH)
7.2 x 4.2 x 2.8"

Comica Audio BOOMX-D Reviews

Not Reliable

By Yonatan
Rated 3 out of 5
Date: 2023-10-18

I bought this a couple of weeks ago. I immediately liked the simplicity and ease of use. It sounded not bad for the price at first. but then came a couple of problems. First, the levels for the transmitters are between 0 -12 DB, but for some reason, if the mic is clipped to a shirt and the person who speaking has a loud voice (not even yelling) even 0db could be clipped very easily. and the only way to control the db is by one button that increases in 1 dB every time you click and rest at 12 db to zero. so that could be very annoying to adjust. Another annoying thing is that when you put the receiver close to the mic jack, (for me the shock mount as well) you hear some static noises. Another weird thing is when a subject is moving while the mic is clipped to his shirt, Besides a mic touch a shirt sound I could hear some static sound as well.

does not specify the latency of the product

By Stephano
Rated 2 out of 5
Date: 2021-03-13

It has + - 20ms latency and I knew it when I already bought them ... if this detail had been specified on the page I would not have bought them

See any errors on this page?

Can the mic gain be set on the transmitter? ...

Can the mic gain be set on the transmitter? Example, set for high gain on a quite source or low gain for recording louder sound? If not, how does the transmitter adjust itself to avoid input clipping?
Asked by: Clifford
The BoomX-D D2 transmitter does not have any controls to adjust the input gain. These levels have been preset at the factory for optimal sound when using either the built-in internal mic or included lavalier mic. You can experiment with mic placement by moving it closer or further from the mouth to achieve the best results for your recording.
Answered by: Lisa S
Date published: 2021-07-16

Can two of these units be used at the same time ...

Can two of these units be used at the same time in close proximity to record four people? Would there be any interference between them?
Asked by: Richard
As per Comica, they recommend no more than 3 units to be used together at the same time.
Answered by: Daniel
Date published: 2021-07-16

Will this work with Canon EOSM50?

Will this work with Canon EOSM50?
Asked by: Melinda
Yes, the Comica Audio BoomX-D D2 wireless mic system is compatible for use with the Canon EOS M50 camera.
Answered by: Lisa S
Date published: 2021-01-31

Can I connect it on a computer to use with Zoom, ...

Can I connect it on a computer to use with Zoom, OBS or Streamyard?
Asked by: Luis
Not directly, you will need a USB audio adapter: https://www.bhphotovideo.com/c/product/1518575-REG/audio_technica_consumer_atr2x_usb_atr2x_3_5mm_to_usb.html/specs?sts=pi&amp;pim=Y This is the recommended audio adapter.
Answered by: Daniel O
Date published: 2021-01-23

Does the receiver have an SD card slot or a way ...

Does the receiver have an SD card slot or a way to store the files without going through a camera or phone?
Asked by: Isaac
No, this is just transmitting and receiving signals, they not a portable recorder.
Answered by: Rafael A.
Date published: 2020-11-19

Is this better than the BoomX-U?

Is this better than the BoomX-U?
Asked by: Gwheyohn
Neither unit is better than the other. This unit works in the 2.4ghz range and slightly simpler to pair, while the BoomX-U is based in the UHF frequency range. The X-D would be great for close range quick setups, will the X-U would be great for longer distance interviews in a challenging wi-fi environment.
Answered by: Daniel
Date published: 2021-07-16

Could you use this on a computer (headphone jack) ...

Could you use this on a computer (headphone jack) for a zoom meeting? The presenter is at the front of the room and the computer at the back say 40 feet away.
Asked by: Margaret
You can use this on a computer only if it has a mic jack. A Headphone jack is only for headphones.
Answered by: James Cruz
Date published: 2021-01-13

What external microphone would you recommend as a ...

What external microphone would you recommend as a replacement for the included one? I&rsquo;ve purchased one and it gives a ton of feedback.
Asked by: Eugene
RODE lavalier Go is a descent choice.
Answered by: James Cruz
Date published: 2021-03-02
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