Unable to turn on the headset & Charging time is too long

Unable to turn on the headset.

• Make sure the battery is fully charged.
• The headset cannot be turned on while charging the battery. Remove the USB Type-C cable and turn on the headset.
• Reset the headset.

Charging time is too long.

• Check that the headset and the computer are directly connected, not via a USB hub.
• Check that you are using the supplied USB Type-C cable.

https://helpguide.sony.net/