Crystal Audio

Crystal Audio

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BIE-03

CNC-4

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Quick Overview

Call Noise Cancelling Earphones with 4 microphones

Superb Sound Quality and crystal clear Conversations with Background Noises eliminated
  • 4 Microphones for excellent call quality
  • True Wireless functionality for perfect convenience
  • 6 hours of playback, 20 hours with case
  • Playful and compact case
$25
  • Call Noise Cancelling

    Clear Conversations, Anywhere

    Equipped with sophisticated Call Noise Cancelling technology, these headphones excel in isolating human voices from the background noise of busy streets or windy environments. This ensures your voice remains clear and natural during calls without the need to speak louder. Experience seamless communication, making every conversation as effortless as if it were happening in a quiet room.

  • High Capacity Battery

    Forget frequent charging

    The high capacity of the batteries included in each earpiece and the case, ensures that you will not run out of battery mid-day

  • Bluetooth 5.3

    Enjoy longer playback time and stable connection

    The new Bluetooth version adds several feature enhancements that improve the reliability, the energy efficiency and offer the best user experience available.

  • Premium Sound

    Experience great audio, superb dynamic range, exceptional sound accuracy

    Enjoy you Music, Videos and Games! Test your Headphones, Speakers, on every aspect of Sound Performance with the Best Tracks for:
    BASS, MIDRANGE, TREBLE, SPATIAL IMPRESSION, IMAGING, 3-Directional Soundstage Width, Depth, Height & Focus, SOUND BALANCE & Dynamics, TRANSPARENCY, Rhythm & Timing, TIMBRE, Attack & Decay.

    Enjoy and share our 9 PLAYLISTS* with the Best Tracks to Test your Speakers and Headphones on TIDAL and Spotify:
    Playlists

    *Selected by Crystal Audio engineers, based on ITU-R BS.1284-2 (01/2019) International Standard for Sound Performance.

  • Deep & Powerful Bass

    Enjoy impressively deep Bass that brings out all low-end frequencies from movie sound effects to lively music tracks

    Bass: The four low octaves, with their centre frequencies below 250 Hz.

    A. SUB-BASS: Center Frequency:31Hz, Frequency Range: 20-40Hz
       Sound Characteristics: Weighty Sound felt more than heard.
       The sound is free from these Colorations: Rumble
    Examples of instruments sound: Kick Drum, Bass, Organ

    B. LOW BASS: Center Frequency:63Hz, Frequency Range: 40-80Hz
       Sound Characteristics: Depth, Thud, Bass Fullness
       The sound is free from these Colorations: Boomy, lose definition
    Examples of instruments sound: Kick Drum, Bass, Piano

    C. MID-BASS: Center Frequency:125Hz, Frequency Range: 80-160Hz
       Sound Characteristics: Fat, Body, Weight
       The sound is free from these Colorations: Chesty, plummy, boomy, unclear
    Examples of instruments sound: Punchy Bass, Vocals’ fullness, Toms Attack, Guitar & Snare Fullness, Warm Piano & Horns

    D. UPPER BASS: Center Frequency:250Hz, Frequency Range: 160-320Hz
       Sound Characteristics: Warmth,
       The sound is free from these Colorations: Boxy, hollow, muddy
    Examples of instruments sound: Vocals, Electric Guitar, and Snare Fullness & Liveliness. Many acoustic instruments, Brass (e.g., alto saxophone), Woodwinds (e.g., clarinet), Violins, etc.

    Enjoy and share our BASS PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Natural & Pleasant Vocals

    Listen to information-rich midrange frequencies that deliver even the tiniest sound details leading to a fine-tuned audio experience.

    Midrange / Vocals: The three midrange octaves, with their centre frequencies between 250Hz-4kHz

    A. Low-Mid: Center Frequency 500Hz Frequency Range: 320-640Hz
    Sound Characteristics: Projection, Presence
    The sound is free from these Colorations: Tubelike, Tunelly, Honky
    Examples of instruments sound: Texture balance, Horn effect on Vocals, Bassline Attack & Clarity

    B. Mid-Midrange: Center Frequency 1kHz Frequency Range: 640Hz-1.25kHz
    Sound Characteristics: Focused & Loud Projection, Whack, Attack
    The sound is free from these Colorations: Cuplike, Honky, Nasal
    Examples of instruments sound: Attack on snare drum, guitar and percussion, ""phone effect"" on vocals

    C. Upper-Mid: Center Frequency 2kHz Frequency Range: 1.25-2.5kHz
    Sound Characteristics: Crunch, Crispy, Musical, Natural, Intense of Sound
    The sound is free from these Colorations: Nasal, Hard, Gritty
    Examples of instruments sound: Vocals Articulation, Guitars liveliness

    Enjoy and share our MIDRANGE PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Crystal Clear Treble

    Experience pure, crisp high frequencies without distortions

    Treble: The three high octaves, with their centre frequencies above 4kHz.

    A. Low-Treble: Center Frequency 4kHz Frequency Range: 2.5-5kHz
    Sound Characteristics: Clarity, Presence, Edge, Detail
    The sound is free from these Colorations: Upper hardness, Wiry, Harshness
    Examples of instruments sound: Vocals Clarity, and Detail, Toms Attack, Snare Crispness, Violin & Piccolo Harmonics, Clarity of any instrument taking a solo

    B. Mid-Treble: Center Frequency 8kHz Frequency Range: 5kHz-10kHz
    Sound Characteristics: Crystal, Metallic, Sizzle, Brightness, Brilliance, Detail, Air
    The sound is free from these Colorations: Sharp, Metallic, Sibilant
    Examples of instruments sound: Attack on snare drum, guitar and percussion, ""phone effect"" on vocals Cymbals, Synths, Metallic Percussion, Steel string instruments, Snare crispness, Electric guitar air/sizzle

    C. Upper-Treble: Center Frequency 16kHz Frequency Range: 10-20kHz
    Sound Characteristics: Air, Openness, Light, Crispy, Delicate
    The sound is free from these Colorations: Fizzy, Gritty, Hiss
    Examples of instruments sound: Hi-hat & Cymbals, Adds ambience to all sounds

    Enjoy and share our TREBLE PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Spatial Impression

    The performance appears to take place ​in an appropriate spatial environment

    Experience Homogeneity of Spatial Sound Reverberance, Acoustic balance, Apparent room size, Depth perspective,​ Sound color of Reverberation.
    Examples of common descriptive terms: Reverberate /dry, Large/small room, Direct/indirect.

    Enjoy and share our SPATIAL IMPRESSION PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Stereo Impression - Imaging

    The Sound Image appears to have the correct and appropriate ​Direction Distribution of the Sound Source.

    Experience Directional balance​, Stability, Sound Image width, Location accuracy. Examples of common ​descriptive terms: Wide / Narrow , Precise / Imprecise

    Enjoy and share our STEREO IMPRESSION PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Sound Balance

    The individual Sound Sources appear to be properly balanced in the general Sound Image.

    Experience Loudness Balance​, Dynamic Range
    Examples of common ​descriptive terms: Sound Source too Loud / too Weak, Sound Compressed / Natural

    Enjoy and share our SOUND BALANCE PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Transparency

    The subjective impression that​ all details of the performance can be clearly perceived.

    Experience Sound source definition, Time definition, Intelligibility
    Examples of common ​descriptive terms: Clear / Muddy

    Enjoy and share our TRANSPARENCY PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

  • Timbre

    The subjective impression of the accurate portrayal of the different sound characteristics of the sound source(s).

    Experience Sound Color, Sound Attack
    Examples of common ​descriptive terms: Boomy / Sharp​, Dark / Light​, Warm / Cold

    Enjoy and share our TIMBRE PLAYLIST*
    with the Best Tracks to Test your Speakers and Headphones on TIDAL and SPOTIFY:

    *Test your Headphones and Speakers with the Best Tracks, selected by Crystal Audio engineers, and based on ITU-R BS.1284-2 (01/2019) International Standard.

    Connectivity

    • Bluetooth Version
      5.3
    • Low Latency (ms)
      200

    Audio Technology

    • Call/Enviromental Noise Cancelling

    Playback Time (up to (x) hours, at 50% volume)

    • Listening with Charging Case (h)
      20
    • Listening (h)
      6
    • Talk Time with Charging Case (h)
      20
    • Talk Time (h)
      6

    Battery

    • Piece Charging Time (h)
      1.5
    • Case Charging Time (h)
      1.5
    • Piece Battery (mAh)
      30
    • Case Battery (mAh)
      200
    • Charger Type
      USB Type-C

    Dimensions & Weights

    • Case Height (mm)
      47
    • Case Width (mm)
      53
    • Case Depth (mm)
      24

    Technical Specifications

    • Fit
      In Ear
    • IPX Rating
      IPX4
    • Range (m)
      10
    • Frequency Response (Ηz-KHz)
      20Hz-20KHz
    • What's in the box
      (1) Product (2) User Manual (3) USB Type-C Cable
     Enjoy your music as the artists intended