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...
“First of all, I'd like to mention overall view of this headphones, it's really stylish. I've listened to them with Fiio E6. Without burn-in, their sound IMO is extremely owerbrighten, but after 20-25 hours it's become more straight and normal. I think this headphones sounds good for vocals, instrumentals and classical music, due to nice airy highs and mids. On some rock songs they're...” --cleg