I was concerned that these headphones would not be of good quality given the relatively low price; However, this is not the case. The ear tips are VERY comfortable in my ear and the different sized tips help create a decent seal in the ear canal. The button works well for controlling Siri, controlling music (including volume), and making calls. Sound quality is good (for a pair of $30 Bluetooth headphones). Although I didn't hear how the phone mail sounded on the other end, I was told that it sounded better than a regular old speakerphone, but not as good as speaking directly into the phone. Since I've only been using it for a short time, I can't say anything about the battery life; However, everything else in the manual works as described, so I hope the best life will match or exceed what is printed there.
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