While the sound is tolerable for the price, there are a number of earbuds in the same or lower price bracket that deliver higher quality sound. I wanted the tips due to the memory foam. They are surprisingly comfortable for me, but some have said that they aren't. Be sure to squeeze the tips to fit them in your ear so that expand while in your ear. In regard to the 'noise cancellation' it is fairly good, especially good at keeping low background noise out.And then there's the build. The build quality is horrendous. Akin to the extremely cheap dollar earbuds that one might find on tour buses or airplanes. Again similarly priced earbuds have them well beat in this area.But why the one star? This is largely due to not receiving the specific model. Be very careful to check whether or not the earbuds are the exact model you ordered. I ordered the Koss Plug, but received the Koss Sparkplugs. Totally different model, although similar. So be careful if a seller is selling for a slightly cheaper price with a fair shorter delivery date. They might try and ship you a different product.So if you are willing to buy earbuds that are arguably overpriced, liable to break but have decent sound and the best noise cancellation in the price bracket, go for it. Just make sure you know what you're paying for.

Bought this earplugs set since the included earplugs with my mobile were not to my liking. Always wanted a better earplugs set which brought out better details to audio.These earbuds are the best alternative to buying Noise Cancelling earbuds for an audiophile since they deliver the same effect without the COST.Why I like?1. Seals out external noise (almost like Noise Cancelling sets) whether the source is Music , Video ror even Youtube.2. An amazing headphone when used with your audio source.3. The package includes an extra set of PlugsWhat I dislike?1. Since they are tiny they are easy to Loose.2. If you have not positioned this properly they tend to FALL Out This So be forewarned.Why do I Recommend?These earplugs bring out the notes that you may have not experienced before and enables you to enjoy audio in a completely different way. This set isolates ambient noise very well, when compared to the Stuff from Bose which costs more than 10 Times. For the COST this is hard to Beat.