A:AnswerHello jam, you may use an adapter to charge it directly on the wall outlet. However, charge the headset using the supplied micro-USB cable and avoid using any fast-charging adapters.
Regards, _Bob
A:AnswerHi Kieka, these headphones have a maximum playback and communication time of 20 hours. The 4.5 hours (approx.) is its charging time. You may refer to this link for more information: https://docs.sony.com/release//Manual_4698106111.pdf Regards, -Mark
A:AnswerHi there! No. This unit is not water resistant. To know more about this unit, you may visit the link below:
http://helpguide.sony.net/mdr/wic400/v1/en/contents/TP0001513172.html
Regards,
Vincent
A:AnswerYes , you can connect them to the tv however you tv has to have a bluetooth connection and support the same revision, if not then you have to buy bluetooth transmitter/receiver tha support your device.
A:AnswerHi there! Yes. The left unit of the headset vibrates when an incoming call arrives. A ring tone will be heard from the headset as well, and the indicator (blue) flashes quickly: https://helpguide.sony.net/mdr/wic400/v1/en/contents/TP0001513169.html
Regards,
Vincent
A:AnswerHi Mel,
We regret to hear that you're having issues with this Headphones. Let's try to isolate the issue by following some troubleshooting steps included on this link:
https://helpguide.sony.net/mdr/wic400/v1/en/contents/TP0001513176.html
Regards,
Zac
Sony Social Support