I bought 6 sets and a few of them were horrible in sound quality, very tinny, echoy, and/or sound very far off. Pese a todo lo incluyo en ventajas porque no he tenido problema alguno, simplemente es cuestión de gustos a la hora de cómo se gestionan los dispositivos. I got these as I have a bad habit of constantly washing my earbuds in the washer on accident. Paired easily with 2 MP3 players I tried these headphones with. My brother has some corsair bluetooth headset and he said it feels small however you should get used it quickly. Overall, I am 100% satisfied with my experience. I feel seriously ripped off. Out of the box, put your foot on the foot bed in a comfortable place (if they are too long or short send them back, you have the wrong size) and then fasten the straps to a comfortable hole. I figured these would be okay to wear around the house. I feel this game is decent but it could have been so much more.