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-A
    2. USB Type-C

  2. After placing the headphones in the charging case, close the cover.

    • 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.

  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 (twice) Battery has no power
    Flashing orange quickly Charging error[1]
    Flashing red Charging failure[2]

    [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] 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 product’s battery jack.

  • 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.