Today"s tech-connected kids listen to MP3 players, videos, portable game devices, DVDs and in-vehicle entertainment systems through earphones, often for hours at a time. ETY-Kids safe-listening earphones are engineered to limit sound output while maintaining Etymotic"s well known sound quality. By controlling the earphones, it is not necessary to restrict the volume setting on the player. Sound coming through ETY-Kids earphones will not exceed safe levels. The main reason listeners of all ages turn up the volume is to block out distracting background noise. ETY-Kids earphones seal the ears with ACCU-Fit eartips so volume levels stay safer. With an adequate seal plus the sound output-limiting of ETY-Kids earphones, parents are assured their kids are listening safely. Perfect for iPod, iPod touch, iPhone.