A:AnswerIt’s a Bluetooth speaker with a 3.5mm jack in the back in case you don’t want to use Bluetooth.
I’ve taken this to the beach and have gotten compliments from passer-by’s. Absolutely love this speaker.
A:Answer8 watts, 15 on the larger unit with wifi. 8 watts but trust me it's loud. No wifi , Alexa is via Bluetooth and the mic doesn't work with Alexa.
A:AnswerYes you can plug an AUX cord into the back. As for the differences, I only know that the Revolve+ II is slightly larger and has a carrying handle.
A:AnswerI’ve connected it to my tv through Bluetooth. Volume is controlled by source’s volume so for the tv, use the remote. You can leave the charging cable in for steady current.
A:AnswerYou can leave it plugged in. The previous answer as to no, same as cell phones is wrong, nonsense. It will not overcharge the battery. In fact Bose sells a charging base.