Precautions while using Earphones
Understanding hearing loss
The concept of permanent hearing damage for most people involves sounds present at or above the threshold of pain, which occurs at 130dB. Such damage is generally reversed in 16 to 48 hours, but hearing loss can be irreversible if the cochlear cells inner ear are damaged. This sort of ear trauma is caused by exposure to transient sounds such as explosions or passing jet planes in proximity to the listener.