With an increasing amount of language learning being done online and with mobile devices (such as with iPads®, Nooks®, and Chromebooks®), the importance of an audio component continues to grow. Both PARCC and Smarter Balanced also integrate the use of audio for testing purposes. Growing text-to-speech functions also underscore the need for accessible audio. This lightweight stereo Ear Bud headphone delivers full-bodied sound. The E3 works with iOS, Windows and Android-based platform devices and is iCompatible with tablets, smartphones, netbooks, notebooks, desktop and laptop computers. Rugged ABS plastic resists shattering for safety Noise-reducing ear covers help decrease external ambient sounds to help keep students more on task Inline volume control Tangle-proof 3.9’ straight cord with 3.5mm plug ideal for use with tablets and smartphones. Includes one “medium” and one “small” pair of replaceable ear covers to fit smaller ears First earbuds with 1-year warranty (including use in schools) iPad is a trademark of Apple Inc., registered in the U.S. and other countries. Apple is not affiliated with Califone, nor endorses Califone products. Nook is a trademark of Amazon Inc., registered in the U.S. and other countries. Amazon is not affiliated with Califone, nor endorses Califone products. Chromebook is a trademark of Google Inc., registered in the U.S. and other countries. Google is not affiliated with Califone, nor endorses Califone products. Windows is a trademark of Microsoft Inc., registered in the U.S. and other countries. Microsoft is not affiliated with Califone, nor endorses Califone products The E3, E3T and E3USB earbud each carries an industry first 1-year warranty with service support available through authorized dealers nationwide.