Feature

●Features state of the are ANC (Active Noise Cancellation) Significantly reduces unwanted background noise so only high fidelity audio remains
●Cancel Everything - Dual microphone CVC 8.0 eliminates background noise to provide crystal clear voice communication
●On-Board Controls - Control ANC, volume and music as well as answer/end calls with the on-board controls
●Impressive Battery Life - Up to 22 hours of use with ANC + Bluetooth or up to 30 hours of use with Bluetooth Only
●One Year Limited Warranty


Description

CS340BT QZCS340BT QZ
CS340BT QZCS340BT QZ
CS340BT QZCS340BT QZ
CS340BT QZCS340BT QZ

Whats in the box

  • Ear Cushions

    • From the brand

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    2. KossKoss

      In 1958 John C. Koss changed the way we all listen to music when he invented the worlds first SP/3 stereophone.

      Koss sought to replicate the excitement of a live musical performance, allowing listeners to experience sound as they had never before, bringing them closer to the music they love. Music lovers around the world recognize that dedication to accuracy in sound reproduction as: The Sound of Koss

    3. John C. KossJohn C. Koss

      Birth of the Stereophone

      Before the worlds first SP/3 Stereophone in 1958, John C. Koss developed a portable stereo photograph player with side-wing speakers.

    4. SP/3 StereophoneSP/3 Stereophone

      Worlds First SP/3 Stereophone

      in 1958 John C. Koss invented the worlds first SP/3 Stereophone introducing personal stereo audio to the world.

    5. SP/3XSP/3X

      SP/3X

      In 1960 Koss released the predecessor to the SP/3 with a lighter design, more comfortable headband and superior sound quality.

    6. Pro/4AAPro/4AA

      Pro/4AA

      In 1970 Pro/4AA set the standard for full-size professional headphones delivering true full frequency performance.

    7. Koss World HeadquartersKoss World Headquarters

      Koss World Headquarters

      On June 25, 1971 John C. Koss unveiled the new Koss World Headquarters in Milwaukee, Wisconsin.

    8. HV/1AHV/1A

      HV/1A

      In 1974, Koss released the HV/1A the first dynamic headphone capable of reproducing all 10 audible octaves.

    9. Porta ProPorta Pro

      Porta Pro

      In 1984 the acclaimed Porta Pro was released and set performance and comfort standards worldwide for decades to come.

    10. JCK /300JCK /300

      JCK/300 Kordless System

      In 1989 the JCK/300 Kordless Headphone system set the standard for infrared wireless headphones.

    11. ESP/950ESP/950

      ESP/950

      In 1990 Kosss revolutionary ESP/950 electrostatic headphones introduced breakthrough high-fidelity sound.

    12. Pro4SPro4S

      Pro4S Studio

      Carrying on the legacy of the Pro/4 line, 2014s Pro4S Studio Headphone was specifically designed for audio professionals.

    13. KPH30iKPH30i

      KPH30i

      In 2017 Koss released the acclaimed KPH30i featuring an ultra-light weight design with remarkable high-fidelity sound.

    14. Utility SeriesUtility Series

      Utility Series

      In 2021 Koss Utility Series introduced three new headphones allowing listeners to connect via Lightning, USB-C and 3.5mm.

    15. TWSTWS

      True Wireless Earbuds

      In 2023 Koss continued its evolution of wireless headphones with the TWS250i True Wireless Earbuds.

    16. Koss Porta Pro On Ear Headphones with Case, Black / SilverKoss Porta Pro On Ear Headphones with Case, Black / Silver
      Koss Porta Pro Black On Ear Headphones with Case BlackKoss Porta Pro Black On Ear Headphones with Case Black
      Koss Porta Pro Limited Edition Rhythm Beige On-Ear Headphones, in-Line Microphone, Volume Control...Koss Porta Pro Limited Edition Rhythm Beige On-Ear Headphones, in-Line Microphone, Volume Control...
      Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Des...Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Des...

      Porta Pro Collection

      Visit the Store

    17. TWSTWS
      BT740BT740
      BT232BT232
      KPH7KPH7

      Wireless Headphones

      Visit the Store

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