Talk about realism. While listening to music on an award-winning Clear Harmony SI1100 by AblePlanet ($180), you feel thrust into a recording studio. A combination of mid range, crisp highs and deep lows overwhelm your senses. Most impressive are the SI1100's ability to create higher frequency harmonics thanks to the Linx Audio, as well as filter out of place sound, and increase perceived loudness. Additional features include ultra-light design, ComfortFit sound isolation tips that offer a comfortable and secure fit to block outside noise, flexible ear hooks to keep the earphones in place during activities, and a built-in controller made for the iPhone.