I tested these headphones on my PC and Samsung phone. They worked fine with the former, but not with my phone. I had to move the connection around to get the proper sound, even then it would keep cutting out. My phone has always worked fine with other headphones, so I'm not sure why it didn't work this time. When using these headphones with my PC the sound was good, with a strong bass emphasis. I like the way they fold flat when not in use. The cable is flat and has remained tangle-free. I can't wholeheartedly recommend these headphones, because they didn't work with every device I tried, and even when they did the sound was adequate rather than anything to write home about.