These produce a great level of sound! I use them in my laptop, ipod and blackberry phone, and it does the job! The build quality could be better, as the mic cover has come loose and i do have to be weary about where i place these headphones as i'm worried they might break! The mic does work in my phone too, and it is clear and crisp. You do get a case with these headphones which does come in handy, one side has netting, the other is hardback, probably plastic with cloth around it. I would strongly recommended purchasing these headphones!