
get these acer a4tech dual sided headphones,sice u asked fr the cheapest,so after using them u wud know they are "money well spent".
pros: great bass and rich sound (from the smaller end-for in ear use,sound quality is much richer than the single sided headphones by acer which are all about bass and not much about richness)-u hardly ever get to use the broader end
Cons:odd shape,ur never cmfy using these when u lie down on yr pillow,excessive usage splits open the plastic top from the metal housing damaging the connections of the headphones and wires,but believe me they are so good when it comes to cheap price and good sound that ive bought two more pairs after one got bust (used excessively for 1 year then it split up from the earpiece!)
price rs 550-600 approx