A:AnswerGreat question! Unfortunately, you can not stereo pair a Sonos One (Gen 2) with a Play:1 or a Play:5. You can group this speaker to play the same content throughout your home over WiFi as they all take advantage of the Sonos system.
A:AnswerBest way to get an accurate answer is to google Sonos One Gen 2 wattage. I think it is somewhere between 3.1 and 3.4 watts. Not sure what you mean by "how loud is it?" It is not a gigantic speaker, so if you are looking to fill your whole house with sound, this may not be what you want. (The larger Play 5 is another story...) I believe Best Buy has a demo speaker set up.
A:AnswerIn order to control your Sonos system with your voice you will need an Amazon Alexa or a Google Assistant account to link to the Sonos systems.
A:AnswerHi! Thanks for your question. The Sonos One is a music speaker when used by itself. If your LG smart TV can output audio via Airplay 2 you could choose the Sonos One as its audio destination. If you would like a Sonos product to connect to enhance your TV experience I would recommend a Sonos Beam or a Sonos Arc.
