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