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I recently purchased one of these which I'm quite happy with, it comes with both a regular stick-on mic for full face helmets, and a boom mic for open face and flip up helmets. There are both left and right speakers and the sound quality is plenty good for riding. I will say however that the speakers are quite chunky, hence the need for the indents, otherwise you're going to squash your ears like I did and trust me - this hurts like hell after a short ride.