A:AnswerThese have a horrible history of breaking. Cheap plastic. Read all the reviews. They will replace them if within the warranty. Better idea - make them better.
A:AnswerIf your TV supports Bluetooth you can pair them. The cable is only 3 feet long. I'm sure you just need a third party 2.5mm cable. Long enough to sit comfortably from to TV
A:AnswerYes, both ears produce sound. Volume can be adjusted via the buttons on the side.
However, I wouldn’t recommend them as a work headset. The over ear headphones have an excellent sound but get a bit uncomfortable if you’re wearing them all day. Also, the mic isn’t great. I’ve had a lot of coworkers have difficulty hearing me.