Studio-Grade Sound for Every Whisper & Shout

Designed for a studio-quality sound experience, the BOYA CastMic G40 features a 14 mm large-diaphragm condenser capsule delivering high-resolution 192 kHz / 24-bit audio. With powerful 125 dB SPL handling, it captures everything from soft whispers to triumphant shouts without clipping or distortion. An 85 dB signal-to-noise ratio ensures clean, accurate sound while effectively reducing background noise.

Thoroughly Block Out Noise

Four-layer noise reduction keeps your voice fully protected. The G40 minimizes noise caused by movement, vibrations, and plosives, reducing distractions from keyboard clicks, distant traffic, or household sounds. Your squad hears your callouts, not your room.

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The BOYA CastMic G40 features a built-in DSP chip for noise cancellation, which can be activated with a long press on the top.

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Its supercardioid dynamic capsule effectively suppresses sound from the sides and rear.

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Combined with an anti-vibration shock mount and pop filter, the G40 minimizes noise caused by movement, vibrations, and plosives.

Ignite Your Stream with RGB Lighting Display

It's a powerful tool designed to help you stand out on streaming platforms. Enhance your setup with 9 dynamic RGB effects and sound-reactive lighting. The immersive visuals create a more engaging gaming atmosphere, making your streams and videos more compelling. All lighting effects are switched directly via a dedicated button button on the microphone body—no software or app required.

Master Gain, Monitor & Mix

Two intuitive knobs let you adjust microphone gain and headphone monitoring volume independently. But what if you’ve already set the perfect overall level, yet the game audio or voice chat still feels too quiet or too loud? That’s where the mix knob comes in. It lets you balance voice and background audio in real time—without affecting what your audience hears. Turn it clockwise to boost game audio, or counterclockwise to emphasize your voice. With these dials, it’s easy to make your teammates sound clearer on Discord or any video call app, or create a more immersive experience by raising the game sound.

Tap to Mute, Stay on Track

Control your audio presence with the precision and confidence broadcasting demands. A simple tap on the mute button at the top of the microphone instantly mutes or unmutes the mic, keeping audio control silent and effortless. The LED indicator shows your status at a glance, turning red when muted. In addition, the built-in 3.5 mm jack lets you monitor your audio in real time with headphones.

Flexible Connectivity for Every Creator

The USB plug-and-play design works seamlessly with the included USB-C to USB-C / USB-A dual-connector cable, allowing easy connection to PCs, tablets, and phones. No extra drivers or software are required, ensuring a quick and hassle-free setup across multiple devices.

How to use?
BOYA Castmic G40

BOYA Castmic G40

BOYA Audio

Packing List

Which is the Best for You?

BOYA Podcast Microphones Series

BOYA CastMic G40
BOYA CastMic G40
BOYA CastMic G40
BOYA CastMic G40
BOYA CastMic S60
BOYA CastMic S60
BOYA K
BOYA K
BOYA Castmic P60
BOYA Castmic P60
BOYA CM40
BOYA CM40
BY-GM18
BY-GM18
BOYA CastMic S60
BOYA CastMic S60
BOYA CastMic G40
BOYA CastMic G40
BOYA CastMic S60
BOYA CastMic S60
BOYA K
BOYA K
BOYA Castmic P60
BOYA Castmic P60
BOYA CM40
BOYA CM40
BY-GM18
BY-GM18
BOYA K
BOYA K
BOYA CastMic G40
BOYA CastMic G40
BOYA CastMic S60
BOYA CastMic S60
BOYA K
BOYA K
BOYA Castmic P60
BOYA Castmic P60
BOYA CM40
BOYA CM40
BY-GM18
BY-GM18
BOYA CastMic G40
Regular price 18.300 HUF
BOYA CastMic S60
Regular price 36.900 HUF
BOYA K
Regular price 28.900 HUF

Specifications

Sample Rate ⓘ A higher value produces smoother and more lifelike sound quality.
192 / 96 / 48 kHz
48 KHz
48 kHz
Bit Depth ⓘ A higher value ensures excellent clarity for both very soft and very loud sounds.
16-bit / 24-bit
24 / 16-bit
16-bit / 24-bit
Microphone Sensitivity ⓘ High sensitivity allows the microphone to record your voice clearly at a normal speaking volume.
-46dB±3dB
XLR:-47 dB ± 3 dB | USB:-47 / 5 dB
K3: -39 dB | K9: -46 dB
SNR (Signal-to-Noise Ratio) ⓘ A higher value delivers a cleaner recording with less background interference.
85dB
≥ 90 dB
75 dB
Max SPL ⓘ The maximum volume the microphone can tolerate. A higher value prevents audio distortion when recording loud sounds.
125dB
>130 dB
108 dB
Polar Pattern ⓘ The specific direction from which the microphone captures sound.
Supercardioid | Features a highly focused front recording area with minimal rear sensitivity.
Cardioid | Records sound from the front and blocks noise from the rear.
K3: Supercardioid | K9: Supercardioid / Omnidirectional / Bidirectional
RGB Lighting
Noise Cancellation
Built-in Mic ⓘ Dynamic microphones effectively block environmental noise, while Condenser microphones capture rich, studio-quality audio details.
Condenser Microphone | Perfect for quiet rooms and studio-quality recording.
Dynamic Microphone | Ideal for loud environments and everyday streaming.
Condenser Microphone | Perfect for quiet rooms and studio-quality recording.
Frequency Response ⓘ A wider range ensures your voice sounds full, natural, and highly accurate.
20 Hz-20 kHz
40 Hz ~ 20 kHz
20 Hz - 20 kHz
Power Supply
USB-C
×
-
Real-time Monitoring ⓘ Listen to your own voice in real time with zero delay through the 3.5mm headphone jack.
Microphone Gain Range
K3: 0-26 dB | K9: 0-27 dB
Gain Adjustment Knob
Audio Output
USB-C
USB-C & XLR
USB-C
Dimensions
-
-
-
Weight
440g
340 g
K3: 415 g | K9: 599 g
Got Questions?

Q1:Which devices are compatible with the G40?

Q2:Does the G40 have a built-in sound card?

Q3:Does the G40 support real-time monitoring?

Q4:When should I adjust the mic and system audio balance?

Q5:Does the G40 support noise cancellation? How do I turn it on?

Q6:G40, S60 and P60, what are the differences between them? Which one should I get?

Q7:How can I tell if the boom arm that comes with the G40B (mic with boom arm version) fits my desk?

Meet the BOYA CastMic G40, designed to elevate every match and stream. Bold RGB lighting energizes your gaming setup, giving every moment immersive visual impact. With noise cancellation, ultra-focused voice capture, easy USB plug-and-play, and intuitive onboard controls, the BOYA CastMic G40 keeps your communication clear and your gameplay fully in control—from casual sessions to clutch moments.


  • Feature 1:Studio-Grade Sound for Every Whisper & Shout

Designed for a studio-quality sound experience, the BOYA CastMic G40 features a 14 mm large-diaphragm condenser capsule delivering high-resolution 192 kHz / 24-bit audio. With powerful 125 dB SPL handling, it captures everything from soft whispers to triumphant shouts without clipping or distortion. An 85 dB signal-to-noise ratio ensures clean, accurate sound while effectively reducing background noise.

  • Feature 2:Thoroughly Block Out Noise

Four-layer noise reduction keeps your voice fully protected. The BOYA CastMic G40 features a built-in DSP chip for noise cancellation, which can be activated with a long press on the top. Its supercardioid dynamic capsule effectively suppresses sound from the sides and rear. Combined with an anti-vibration shock mount and pop filter, the G40 minimizes noise caused by movement, vibrations, and plosives, reducing distractions from keyboard clicks, distant traffic, or household sounds. Your squad hears your callouts, not your room.

  • Feature 3:Ignite Your Stream with RGB Lighting Display

It’s a powerful tool designed to help you stand out on streaming platforms. Enhance your setup with 9 dynamic RGB effects and sound-reactive lighting. The immersive visuals create a more engaging gaming atmosphere, making your streams and videos more compelling. All lighting effects are switched directly via a dedicated button button on the microphone body—no software or app required.

  • Feature 4:Master Gain, Monitor & Mix

Two intuitive knobs let you adjust microphone gain and headphone monitoring volume independently. But what if you’ve already set the perfect overall level, yet the game audio or voice chat still feels too quiet or too loud? That’s where the mix knob comes in. It lets you balance voice and background audio in real time—without affecting what your audience hears. Turn it clockwise to boost game audio, or counterclockwise to emphasize your voice. With these dials, it’s easy to make your teammates sound clearer on Discord or any video call app, or create a more immersive experience by raising the game sound.


  • Feature 5:Tap to Mute, Stay on Track

Control your audio presence with the precision and confidence broadcasting demands. A simple tap on the mute button at the top of the microphone instantly mutes or unmutes the mic, keeping audio control silent and effortless. The LED indicator shows your status at a glance, turning red when muted. In addition, the built-in 3.5 mm jack lets you monitor your audio in real time with headphones.


  • Feature 6:Flexible Connectivity for Every Creator

The USB plug-and-play design works seamlessly with the included USB-C to USB-C / USB-A dual-connector cable, allowing easy connection to PCs, tablets, and phones. No extra drivers or software are required, ensuring a quick and hassle-free setup across multiple devices.

Best for you?