About 30 mins into the movie the dvd started jumping and did not stop making it impossible to watch. 2) The volume roller is EXTREMELY easy to accidentally adjust. I think with it dragging on the ground all the time it got caught on something pulling it hard to the side into the teeth which ripped into it. It fits beautifully at the bottom of my closet. So the lock mount does not fit. I like in ear monitors because they keep out ambient noise (traffic and clanging weights in the gym) and a good set will give you audiophile music on the go. I now train for health, fitness and vanity 😉. buena relacion precio calidad My ears tell me that the sound on the P13’s is about 25% better without the noise cancellation on the big sister P14’s. I would not eliminate my headlamp, though.