It really has a unique design with the bass masq. The design (those big eyes) really improve the bass performance slightly from the other cheap Sony in-ear and earbuds headphones. The audio quality is really cool with its 13.5mm driver units. From my experience, the bass is nice and the sound is also clear. It also have the neodymium magnet that delivers clear and powerful sound as stated in Sony's website. Its 3.5mm jack is also gold-plated. Besides, it has a cord slider that helps to overcome tangled cords.
 
In summary, it was a value buy. A cheap package that comes with quality audio and unique and interesting technology (design of the earbuds). It is very suitable for traveling, jogging, and youths because it is very cheap yet fairly quality. The bold design and colour is also said to attract teenagers towards the product. For young, beginner audiophiles, this is one to watch.