These are reasonably priced, high quality in-ear headphones for your iPhone. 

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 everytime the music plays.

The headphones are available in 9 cool colors and each box ships with a leather carrying case and 3 pairs of ear tips (small, medium & large). These are definitely worth a go.