Charging the headphones and charging case

  1. Connect the included USB charging cable (USB Type-C side) to the battery jack of the charging case.

    • The included USB charging cable is designed for exclusive use with the product. Do not use any other USB charging cable.
    • When inserting the USB charging cable into the USB port or battery jack, insert it directly (horizontally).

    1. USB Type-C
    2. USB Type-A

  2. Place the headphones in the charging case.

    • When charging the headphones, make sure the indicator lamps on the headphones light up. If they do not light up, remove the headphones and place them in the case again.

    1. Indicator lamp

  3. Connect the included USB charging cable (USB Type-A side) to the computer to start charging.

    • While charging, the indicator lamp on the charging case lights/flashes as follows. (It may take several seconds for the indicator lamp to light.)

    1. Indicator lamp
    Indicator lamp Status
    Flashing orange -> Flashing yellow -> Flashing green Charging
    (The indicator lamp flashes orange when the battery level is low and changes to yellow then green as the battery level increases.)
    Lights in green for 7 seconds, and then turns off Charging complete
    Flashing orange quickly Charging error[1]
    Flashing yellow Foreign matter detected inside battery jack[2]
    Flashing red Error detected[3]

    [1] The charging case or headphones may be hot. Allow the temperature of the product to cool sufficiently before charging in a well-ventilated place (10 to 35°C (50 to 95°F)) away from direct sunlight.

    [2] Stop using the product and check for any foreign matter inside the charging case battery jack.

    [3] Discontinue use of the product and contact your local Audio-Technica dealer for repair.

  4. When charging is complete, disconnect the USB charging cable (USB Type-A side) from the computer.

  5. Disconnect the USB charging cable (USB Type-C side) from the battery jack on the charging case.

  • When charging, make sure to use the included USB charging cable. The product may not charge with cables other than the included USB charging cable.
  • Always make sure the headphones are not wet before charging. The headphones may not operate correctly or may not turn on if they are wet. Wipe the headphones with a dry cloth, shake them multiple times to remove any excess water, and allow the headphones to dry thoroughly before charging.

USB charging cable

The included USB charging cable is equipped with an overheat protection function. Charging will stop if abnormal heat generation is detected due to charging being performed with water or foreign matter inside the charging case battery jack or USB charging cable. To prevent electric shock or malfunctions due to reasons such as heat generation, smoke emission and fire, make sure to use the included USB charging cable when charging the product.