My husband LOVES this thing. He listens to audiobooks a lot and always has this in his ear, connected with his phone. He listens to music and videos as well. 4 stars becase it's definitely NOT the best when it comes to voice calls, the person on the other end can never hear him correctly so he has to shut it off to use the phone. Other than that it's great! It's super tiny, doesn't take long to charge, and hardly noticeable when wearing. He loves wearing it for his runs too, beause it's only in 1 ear which makes it safer running on the roads, and no cords to get tangled!