The Mixcder’s E9 won’t excite you, but for the money, they shouldn’t have to. The best way we can describe the sound of these headphones is that they sound just fine, and there’s nothing that stands out as particularly bad. They just work. Nothing is especially punchy or particularly exciting, but nothing is offensive either, which could be just what you need to escape from work distractions or other noises.
We had no problems with connectivity during use, and noise cancellation worked as expected. We found these nice to use in a coffee shop, where there are a lot of different sounds. One issue to point out is that they feel fragile. It’s not like they’re going to snap in half, but you can feel the material quality or lack thereof. Otherwise, if you’re going to treat them nicely, the Mixcder E9 are a solid, if not exciting, option.