These earphones are amazing The sound quality is extremely good The bass is excellent and better than some headphones like mdr zx110, zx310 and some other ones.If you have an equaliser and you know how to use one, this earphones will be like a beast.Its bass and trebble is equally good and it will be good for bassheads.Build quality is also good.It has metal parts and plastic which properly shows which is left and right.The packaging is good as well.As soon as you open the box, you will find the earphones.Then you can find a warranty card, 3 extra different sized earbuds and a pouch for keeping your earphones.The pouch quality is good and hence I use it a lot.Overall the performance is great and value for money.