COWON CE1"s have dual sound damping filters to give a natural sound with enhanced bass and clear mids and highs while the design fits your ear very well providing sound isolation Features Grand and full sound from the spacious housing design In- canal earphone. Open type design to be comfortable and not give strain to the ear and also to isolate ambient noise. Double damping filters to give soft and high quality sound. At the front of the housing there is the Air Hole to give low sounds more power. At the back of the housing there is the Air Duct to give the best of mid-high range thus bringing the most natural sound. Details Cowon CE-1 In-Ear Stereo Earphones From the manufacturers who continue to bring you the highest standard and quality of MP3 Players & Portable Media Players. Cowon now bring you the perfect accompaniment the Cowon CE1 In-ear Earphones! These powerful little earphones will compliment any portable media player. Mow you can bin your original bundled earbuds and get that Cowon feeling throughout with the CE1. Their subtle and elegant design brings a touch of class and style. With your comfort in mind Cowon have added in Small Medium and Large tips so that you get the best possible fit and sound isolation. Let the CE1 filter crystal clear music to your brain to get your feet tapping..... A double damping filter is applied to the unit"s front panel and sound nozzle this offers a soft and optimized sound in all spectrums. Cowon have also added air holes towards the front of the housing of the CE-1 which adjusts and tunes the sense of volume on low notes delivering a firm and powerful sound. The air trickery doesn"t end there though as Cowon have also added air ducts on the back panelto adjust the sense of volume from the mids and high notes creating an overall natural sound.