The available operating time is short (the duration of the battery is short).

  • If you set the following functions, the available operating time of the battery becomes short.
    • Sound quality mode during Bluetooth playback: Priority on sound quality
    • Noise canceling function/Ambient Sound Mode
    • Equalizer
    • DSEE
    • Function to launch the voice assistant by your voice
    • Service Link
    • Bass Control function (ULT button)

    If you run the above settings at the same time, the available operating time of the battery becomes even shorter.

  • If the headset is not used for a long time, the rechargeable battery usage hours may be reduced. However, the battery life will improve after charging and discharging several times. If you store the headset for a long time, charge the battery once every 6 months to avoid over-discharge.
  • It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F). Efficient charging may not be possible beyond this range. If the problem persists, consult your nearest Sony dealer.
  • If the usage hours of the built-in rechargeable battery decrease significantly, the battery should be replaced. Consult your nearest Sony dealer.