Spark High Definition In-ear Headphones are the combination of precision acoustics, unique design and expert ergonomic research. Powerful and accurate acoustics are achieved through high performance dynamic driver and special high definition acoustic filter built-in, resulting in full, explosive bass, intense mid-range and clear treble frequency response that will put a smile on your face...
“ I rarely write reviews but after spending so much time trying to find good in-ear headphones I think my search has finally ended. I'm very impressed with the clarity of the sound through the entire sound range. The bass is also very impressive; something about it just feels right. They also feel very comfortable as well; most in-ear buds tend to make my ear canals uncomfortable after 30...” --hahaxixi