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3Dio Free Space Binaural Microphone

SKU: 3DFS MFR: FS
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Key Features

  • Capture immersive audio with this binaural microphone, great for ASMR recordings.
  • Enjoy low noise and high-quality sound; perfect for professional field recording.
  • This omnidirectional microphone delivers a natural, spacious stereo sound image.
  • Compact and durable design makes this microphone ideal for on-the-go creators.
  • Achieve pristine audio with a wide frequency range ideal for diverse soundscapes.
  • Simple connectivity with the 3.5mm stereo jack ensures easy setup for recording.
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On Backorder?Expected Availability: 09/2025
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Questions & Answers

Shopper : Why Did You Choose This?DARRELL W : I chose the 3Dio because I am recording my sound journey performances and want to share the essence of that experience with online listeners.CELVIN D : Amazing for content creationALEXANDRIA G : suggested by my manager and reviewsLYNSEY S : Im trying asmr for the first time!ITSARAPHARB S. A : My friend want thisANNEMARIE E : Because I love to sing and hear sounds close by.TOOLBOX V : Highly recommended based on SNR.ZACHARY M : Need for my ASMR channelBRIAN M : Fast shippingKJ C : Fastest Delivery

Reviews about this item

Review Summary

2021-07-29T11:17:29

Rated 5 out of 5

Im in shock at how well it works..

I love using this product for ASMR purposes and it sound amazing

LYNSEY S.

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3Dio Free Space Specifications

  • Directional Pattern

    Omnidirectional

  • Frequency range

    100 Hz - 10kHz

  • Sensitivity

    -28 +/-3dB at 1kHz (0dB=1V/Pa) Rl=3.9K Ohm, Vcc=5V

  • S/N Ratio

    80 dB at 1kHz

  • Max. SPL

    122 dB SPL (Typ.) at 1kHz Distortion level 3% max (peak before clipping)

  • Output impedance

    2.4k Ohm +/- 30% at 1kHz (RL=3.9k Ohm)

  • Operating Voltage

    5V (3V-10V)

  • Microphone Diameter

    0.39" (10mm)

  • Output

    3.5mm (1/8") stereo jack (mic level output)

  • Dimensions (W x H x D)

    7.5 x 4.5 x 4.5" (190 x 110 x 110mm)

  • Weight

    1.5 lbs (680g)

  • UPC Code

    863551000024

About 3Dio Free Space

FEATURED REVIEWS

Im in shock at how well it works..

By LYNSEY S.

I love using this product for ASMR purposes and it sound amazing

Free Space Binaural Microphone.

The Free Space binaural microphone is the most affordable, high-quality binaural microphone on the market. The integrated microphone capsules are extremely sensitive and quiet. The capsules have a very natural presence, perfect for binaural recordings. The Free Space delivers portable, professional quality binaural in the palm of your hand.

Unmatched Natural Sound.

The Free Space captures sound just like we hear sound in the real world with our own ears. When you listen to a recording captured with the Free Space using headphones or 3D capable speakers, you hear the sound as if you were there at the time of recording. The effect is so powerful because the Free Space design is based on 13+ years of research into binaural technology and human hearing.The microphone works well in windy conditions even without protection. Wind sounds realistic without affecting the binaural experience or overloading the microphones.

Unmatched Natural Sound.

The Perfect In-Studio Tool.

The Free Space has a very warm and solid response in the low to mid-range frequencies. This brings out the punch as well as provides low-end support for bass-heavy sounds. The frequency response of the capsules used in the Free Space rolls off slightly above 10kHz. This is excellent for recording instruments with loud high frequencies like drum cymbals or strummed acoustic guitars. It also prevents any harsh effects that are sometimes associated with binaural recordings using smaller capsules.

The Perfect In Studio Tool.

Standard Output.

The output of the Free Space binaural microphone is a stereo 1/8" (3.5mm) output jack. Simply plug it in to your favorite stereo audio recorder or microphone pre-amp, and start recording true binaural audio.

Standard Output.

Microphone Capsules.

The Free Space uses matched hi-sensitivity capsules.

The 3Dio FS is a stereo binaural microphone. The literal translation of the word "binaural" means 'of, relating to, or used with both ears'. How it works is that there are microphone capsules inside the two prosthetic ears. When listening to the microphone through headphones, it mimics the way humans hear the natural world. In other words, it picks up sounds the way that your ears pick up sound. The shape of the prosthetic ear manipulates the sounds and mimics a real human ear. It allows the listener to use spatial cues and localize sounds originating from above and below, in front and behind, and to the left and right of the microphone using only two channels. It transports the listener to the space where the recording took place.

Microphone Capsules.

3Dio FS & FS XLR Horizontal Polar Pattern

Horizontal Polar Patterns

The 3Dio FS microphones contain integrated Primo EM172 microphone capsules inside each of the prosthetic ear canals. The capsules are small diaphragm, omnidirectional condenser microphones that are extremely sensitive and quiet.

Horizontal Polar Patterns

The matched Primo EM172 capsules have a very natural presence which are perfect for binaural recordings. All 3Dio FS models deliver highly portable, professional quality binaural audio in the palm of your hand. The 3Dio FS microphone has a very warm and solid response in the low to mid-range frequencies.

Brilliant Audio, Incredible Versatility.

• In the recording studio for tracking and recording virtually any instrument.
• Field recording of the natural outdoor environment. The sensitive capsules capture such things as planes flying overhead, birds chirping, distant thunder, footsteps, etc.
• Simple stereo recordings in acoustically complex environments containing a plethora of sounds (airport terminals, tradeshows, highly populated areas, etc.).
• Measurement and calibration of open (over the ear) headphones.
• Filmmaking for spatial relevance and acoustic immersion.
• Podcasts for realistic 'at the table' perspective of conversations and interviews.
• YouTube videos for a professional audio experience.
• Assessment and evaluation of noise in industries looking to measure the impact of acoustic reverberation of various materials.
• Hobbyists looking to record in full 360 Degree professional audio.

Brilliant Audio, Incredible Versatility.

Features.

  • Omnidirectional-patterned capsules for true binaural capturing
  • Realistic human ear pinnae for life-like attenuation and amplification from all directions
  • Low susceptibility to RFI
  • Wide dynamic range of 108 dB
  • High sensitivity and ultra low noise
  • Compact design ideal for field recording and transporting
  • Performs well over a wide range of temperature and humidity conditions
  • 1/8" (3.5mm) stereo TRS output jack
  • Rugged aluminum chassis
  • Bass roll-off switch beginning at 160 Hz (applies to 1/8" TRS output only)
  • 8" - M2M 1/8" stereo TRS cable included
  • Easily exchangeable 9V battery (included) for powering microphone
  • Comes standard with a removable 5/8" microphone stand adapter
  • The base of the microphone contains a 1/4"-20 female thread mounting hole that can be connected to a hot-shoe adapter or used to mount directly onto a tripod or grip handle

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Capture immersive audio with this binaural microphone, great for ASMR recordings.
  • Enjoy low noise and high-quality sound; perfect for professional field recording.
  • This omnidirectional microphone delivers a natural, spacious stereo sound image.
  • Compact and durable design makes this microphone ideal for on-the-go creators.
  • Achieve pristine audio with a wide frequency range ideal for diverse soundscapes.
  • Simple connectivity with the 3.5mm stereo jack ensures easy setup for recording.

What's in the box:

  • 3Dio Free Space Binaural Microphone
  • 3.5mm (1/8 ") Stereo TRS M2M Cable (8 ")
  • Silicone Ears
  • Removable 5/8 " Microphone Stand Adapter
  • Hardshell Carrying Case
  • User Manual
  • 3Dio 1 Year Limited Warranty