True Wireless Noise-Cancelling Headphones


Innovative, Intimate Sound with Advanced Noise-Cancelling

  • Clear audio from 5.8mm high-resolution drivers with three-layer diaphragm for crisp sound. An edge-mounted system for the external magnetic circuit with impressive performance
  • Beamforming microphones capture sound clearly, even in noisy environments, while using Qualcomm® cVc™ Generation 8.0 for clearer voice transmission. And the sidetone feature allows for more natural-sounding conversations
  • The charging case has a sterilization of bacteria and viruses*. Put the headphones back into the charging case after use, and Deep-UV disinfection will be performed automatically.
  • Multipoint support enables two simultaneous Bluetooth connections and easy switching between the two connected devices
  • Two noise-cancelling systems and five presets for a more intimate experience. Improve quietness with hybrid digital noise-cancelling technology and automatically create quiet spaces anywhere
  • Enjoy music while maintaining awareness of your surroundings. Built-in occlusion cancellation improved voice clarity with instant volume adjustment and the quick hear-through feature.
  • The non-slip casing is designed to fit the natural cavity, and the hybrid earplug structure combines soft and hard silicone materials. The eartips can improve adaptability to fit any ear shape
  • Premium sound experience with variety of audio sources, including Qualcomm® Snapdragon™ Sound™ compatibility and Sony 360 Reality Audio certification. eadphones. Can have reliable connection with virtual assistant
  • Adjustable button assignments for unique operation patterns. Convenient touch sensor with assignable actions and functions.
  • Place-and-charge case design, the charging case supports Qi Wireless Charging
  • Minimize audio lag with Low Latency Mode for gapless playback of games and videos

    1. For safety purposes, the system is enabled only while the lid of the charging case is closed. The UV rays do not cause deterioration or fading of the headphones in any way.
    2. The system uses ultraviolet rays with short wavelengths to sterilize and eliminate bacteria and viruses effectively. More than 99% effective against E. coli and bacteriophage viruses, and more than 90% effective against Staphylococcus aureus, but it is not effective against all bacteria and viruses. The effectiveness against the novel coronavirus has not been verified.
    3. The eartips will not fade or deteriorate due to light exposure.

    Sound is one of the most influential ways to connect people, whether it’s feeling the passion of an artist while listening to a live performance, experiencing the imagination of the creator through an exciting video, or simply communicating with friends, family, and co-workers remotely.

    Creating an intimate sound space has become one of the main goals of premium next-generation headphones. The truly wireless ATH-TWX9 headphones offer the freedom to customize your sound space for an advanced audio experience. The headphones are also designed to fit any ear shape to provide intimate, comfortable sound. Enjoy an immersive listening space in any environment with an advanced noise-cancelling function.

    Other features include 360 Reality Audio for a realistic 3D sound stage; the advanced Snapdragon™ Sound™ platform for higher quality music, video, and calls; and a Deep-UV sterilization system that simplifies everyday care of your headphones.

    Designed with users in mind, these headphones offer the ultimate in advanced, intimate audio experiences.

    • audio technica ATH-TWX9
    • audio technica ATH-TWX9
    • audio technica ATH-TWX9
    • audio technica ATH-TWX9
    • audio technica ATH-TWX9
  • ATH-TWX9 Bluetooth Specifications

    Communication Systems

    Bluetooth Version.5.2

    RF Power Output

    10 mW EIRP

    Operating Range

    Line of sght approx. 10m

    Operating Frequencies

    2.4GHz band (2.402GHz ~ 2.480GHz)

    Modulation Mode


    Spread Spectrum Method


    Bluetooth Profile Support


    Audio Codec Support

    Qualcomm® aptX™ Adaptive Audio, Qualcomm® aptX™ audio, AAC, SBC

    Content Protection


    Sample Rate

    44.1 kHz, 48 kHz, 96 kHz (When using Qualcomm® Snapdragon Sound)

    Bit Depth

    16 bit, 24 bit (When using Qualcomm® Snapdragon Sound and Qualcomm® aptX™ Adaptive audio)

    Frequency Range

    10 ~ 47,000 Hz (when Qualcomm® Snapdragon Sound 96kHz sampling)
    20 ~ 20,000 Hz

    ATH-TWX9 Specifications (Headphones)



    Driver Diameter

    Ø5.8 mm


    106 dB/mW

    Frequency Response

    10 ~ 40,000 Hz


    16 Ω

    Power Supply

    Headphones: DC 3.85 V lithium ion battery;
    Charging case: DC 3.85 V lithium polymer battery

    Charge Time

    Headphones: Approx. 2.5 hours
    Charging case: Approx. 3.5 hours(USB charging), Approx. 5.0 hours (wireless charging)

    Operating Time

    Max. approx. 6.0 hours (headphones music playback); Max. approx. 18.5 hours (headphones + charging case)


    Headphones (Both L and R): Approx. 5.4 g / Charging case: Approx. 55.9 g

    Waterproof Rating

    IPX4 (Headphones only)

    Operating Temperature Range

    5℃ ~ 40℃

    Accessories Furnished

    USB charging cable (30 cm USB-A / USB-C)
    Eartips : Short (XS, S, M, L); Standard (XS, S, M, L); Long (XS, S, M, L)

    ATH-TWX9 Specifications (Microphone)


    MEMS type

    Polar Pattern


    Frequency Response

    100 ~ 16,000 Hz


    -38dB (1V/pa at 1kHz)


    audio technica support ATH-TWX9_CG.pdf - ATH-TWX9 Caution Guide
    audio technica support ATH-TWX9_QSG.pdf - ATH-TWX9 Quick Start Guide
    audio technica support ATH-TWX9-UM-EN.pdf - ATH-TWX9 User Manual
    audio technica support ATH-TWX9-UM-TC.pdf - ATH-TWX9 User Manual (Chinese)