The Targus Active Noise Cancellation Headphones allow you to enjoy music, movies and less background clamor at home, in the office or while traveling. The ear cups are complete over-the-ear style, providing greater extended wear comfort for days at the office or on your commute. Designed for storage and portability, the headphones easily collapse, fold and store neatly into the carrying pouch. The air traveler will appreciate the two-prong airline adapter plug which lets you pass the time watching the in-flight movie or just listening to music. The on/off switch controls the noise cancellation and the headphones can still be used without batteries.