A:AnswerI use it outside all the time. It can get pretty loud but if you are at the beach, not so much. It is always windy at the beach, so you could have it next to you but surrounding beachgoers won't hear it.
A:AnswerThis is a horrible answer but here goes l: it depends :-)
If your television has Bluetooth connectivity as an option for sound output, any Bluetooth capable device can be used wirelessly.
If your television has airplay or AirPlay 2, you would then be able to connective via your home network
A:AnswerIf you have paired a speaker or headphone device in the past then the answer is yes:
I must say that I’ve yet to see an automobile “push” audio. All Bluetooth traffic in my person experience has been of the push from a mobile device into the car speakers.