A:AnswerYou have to unpair them from your phone before pairing them with another device. Mine work on all my devices, but has only one Bluetooth connection.
A:AnswerThey're passive noise cancellation. It won't complete drown out background noise when you have the music off, but even at low volumes you can't hear much else.
A:AnswerHi Gisi, this headphone comes with a 1 year Sony warranty. Other warranties may be offered depending on the retailer. You may refer to this link for more information about Sony's warranty terms on this headphone: https://docs.sony.com/release//Warranty_446033111.pdf Thanks, -Mark
A:AnswerHi Sombi, The unit doesn't have a port for a wired connection. It only uses Bluetooth connection. You may refer to the link below for more information:
https://docs.sony.com/release//Help_4591692111.pdf
~Ralph
A:AnswerNo only a charger, you do not need the other, just plug it in to the computer and it will charge the headphones.. remember its blue tooth most plugs work
