A:AnswerLike any speaker if you play it at max volume over time it will damage the speaker and reduce its life. I am not willing to test this out with my speaker but a general rule is to not play anything you have at full volume for extended periods of time. It makes more sense to purchase a larger/more capable device.
A:AnswerOverall it's good, I do notice on some songs though it will have a static sound or not be able to hit notes and bass. It is rugged though, as I have fallen off my skateboard on to it. So I turn the volume down from full blast to like 1 or 2 clicks under and sounds good. I would say 8/10 solid.
A:AnswerYes. There is a multi-function button that allows you to answer incoming calls and if you press and hold it you can summon your phone assistant and do anything you like
