These headphones are a good value purchase for $29. I needed ear buds for my walks and for working out - specifically ones that clip over the ear. I was not willing to fork over $150+ for ear buds, as I consider ear buds to be almost disposable based on the abuse they go through. I was not disappointed as I did not want concert quality sound - I wanted "good enough" sound. I also wanted comfort and some degree of sweat/water resistance. These fit the bill. These also have a decent mic for answering calls.
I have not had the dropouts and connection issues that others have experienced. Frankly, the Bluetooth connection on my iPhone 6 plus is fairly flaky on its own with my other Bluetooth devices, so this performed no different than anything else. Once connected, they stayed connected.
I also have yet to hear a set of ear buds that blow me away from a sound perspective. These sound the same as every other "in-ear" pair - push them in deeper for more bass until they slip a little, then push them in again - otherwise just deal with a little less bass.
Bottom line - if you are looking for "good enough" sound, and you are not expecting to get audiophile quality with ear buds, then I do not believe these will disappoint. The price point makes this a low risk option.