Frugal lovers basslastigem sound will enjoy this IE, because you get a lot of bass for your buck. Other sound characteristics such as resolution, height, timbre, stage, etc. are expected to be evaluated below average for the price, as there are much better headphones for little additional cost.
But who is looking for a low-cost handset, with bass-heavy music to drown out eg at the gym, the background noise is right here.
