Researchers in several countries had been revealed the increases in hearing loss among young people since the presence of Sony Walkman. Although their parents call tell their sons and children to keep on the volume in low level on the portable music devices, in fact, most teenagers never listen to their parents. To solve it, Etymotic, an earphones and headset manufacturer has introduced ETY Kids Safe-Listening Earphones. ETY Kids Safe-Listening Earphones will automatically adjust the volume limit in safe level, even in maximum sound level. Although the maximal sound level in ETY Kids Safe-Listening Earphones is lower than general earphones, but it designed to cover the noise from disturbing sounds around children.  It means that your children are not needed to raise the sound level to muffle sound around them. ETY Kids Safe-Listening Earphones comes with 3.5 mm of headphone jack. Etymotic ETY Kids Safe-Listening Earphones available for any products from Apple. ETY Kids Safe-Listening Earphones available on the market with price for about $ 49.