A:AnswerAs a person with big ears that fit in the over the ear headphone cups, i would suggest it’s safe to say they would comfortably fit with behind the ear hearing aids.
A:AnswerHave eventually figured a way to connect them bit weird but it works. Connect another set of Bluetooth headphones 1st then switch beats on it tv will ask to connect yes then disconnect from devise already connected
A:AnswerI'm not sure about specific headphones, but extreme cold temperatures can sometimes affect electronic devices. It's always a good idea to check the manufacturer's guidelines