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...
“ Tested on various classical and jazz pieces, found the SD3 to give commanding performance on all. Note, I used high quality flac versions of all songs tested. SD3's are about two days old and have about 8 hours on them, hardly broken in. They were bought from this shop and imported into the states at the regular retail price. Eartips used were Sony hybrids, peach inner...” --Carlsan