I bought these from livingsocial on sale and admittedly didn't expect much, but when I received the package, I was pleasantly surprised by the care put into a 25$ item. These headphones won't convince you that you're listening to an IMAX movie or really compete with studio headphones, but for earbuds, they're actually pretty solid range. They range from 20-20kHz with a 16 ohm impedance, which probably means it doesn't get quite that lo..