Average.... Battery life is not so great... one long conversation and it is done. Only saving grace is the portable cordless charger, but if you have back to back calls, it is a little frustrating. I got it because it was small and fit down in your ear (I like my sony ear phones that fit down in the ear - they are comfortable and have amazing clarity). The only other thing is that it fits down in my ear, but occasionally feels like it could possibly fall out.