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 bought these SOL AMP in-ears at a local TJMaxx store for a reasonable price. The build quality is pretty good and the sound isolation is very good. The sound quality had some issues out of the box. Initially, I found the bass somewhat boomy and not very deep. The midrange sounded boxy. The highs were not as crisp as I like it. If you have ever heard a pair of very large cheap...” --bikdav