A:AnswerThey connect great to my Fire TV in Bluetooth settings. Even the volume, play/pause etc controls work. Very convenient from bed. IDK what brand SmertTV you have but they probably work - just go to Bluetooth settings on the TV and pair them.
A:AnswerHas a noise cancellation feature that is wicked! And it eases up when you speak so can hear surroundings better. Also can set sensitivity. If you have Apple TV box it will connect to it
A:AnswerNo, but they are designed for easiest integration with Apple systems. So some features may be unavailable to you if you don’t also have an iPhone.