I bought these earphones in 2011 for a price of 480 rs, and after just 2 months of use, one of the sides stopped working.
Durability- these earphones have a very very poor plastic build quality and the wire tangles a lot. There is a lot of dust deposit in a very short time, as a result, the earphones are always looking dirty and unattractive. Also, the feel of the material is very cheap.
Sound- the sound of these earphones is decently loud( 30 dB) and crisp. Bass output is comparatively low but the treble is above average.
Comfort- the earphones come with replaceable earbuds in 3 different sizes, so the size is not an issue. The earphones are light weighted and fit snugly.
Value for money- if you are a student or a heavy user. These earphones are just not for you, delicate use is adviced anyway.