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 purchased these earphones a couple of weeks ago and have had the urge to write a review. However, I needed too make sure that they were fully "burned" and used in different environments to see how they performed before taking the plunge. This is my first ever headphone review, so please bear with me - I can't say that I know all the right terms or generate scientific diagrams and...” --mcook1970