I was just delivered a pair of these headphone and found it frustrating to use. I have connected to my laptop during work to listen to music and making skype calls. I also need to take calls on my phone more than usual and found it is very frustrating and time consuming to deactive bluetooth on one device then connect to the other. 

I wonder why it would not connect to two devices at the same time or easily switching between two devices? QC35 would have this function long times ago and even cheaper headphone could support this function. If you are facing the same situation and feeling regreted to buy sony headphone, please support this post to send the message to Sony! I would love to support Sony products only if they would lisent to their customers.