Relatively good sound, there are occasional disconnections and the battery life is about 4 hours. The major drawback is the design of the earphone. It does not fit well in the ear at all. Essentially, only the silicone sits inside the ear, with the metal part of the earphone hanging and not "sitting" in the ear, resulting in it protruding outwards and the weight pulling it out. I tried all the silicone sizes that come with the earphones, but none of them helped stabilize the earphones.