Premium sound isolating inner-ear headphones from Denon - a leader in audio innovation. These high quality ear-buds feature Denon's exclusive Acoustic Opimizer which adjusts sound pressure balance in front and behind diaphragm to deliver dynamic bass sounds. Denon's new earbud headphones are the ideal solution for consumers who want to enjoy the flexibility and convenience of super lightweight on-the-go listening, without any sacrifice in audio quality. Ideal for use in commuting via airplane, automobile or subway, and AH-C350 (available in black or white) will faithfully reproduce original sound for discriminating listeners. The comfortable canal-type design that fits snuggly into a listener's ears. Three different sized ear pads are included for a more custom fit.