The quality isn’t bad I love it. The only thing mine came without the earpiece cover so it hurts my ear after using it for so long, but other than that it’s a great product in my opinion.

No -_-

It depends on the type you have. If its the small round one like in the photo best results are if you charge it off of PS3 directly. The longer the better but it has about a 2-3 hour life. If you have the more square like one best off a plug in wall that one will last 3-5 hours. I have had both I prefer the square for the longer life it is a little bigger and beeps when mute is on but still sounds great. Only downside to smaller one is the shorter battery life but still has great sound.

No 

Yes. Works just like a Bluetooth headset for your phone. I've actually used mine with my phone, works well.