The inherent risk of excessive volume when using ear bud headphones makes them more hazardous to use than the older and larger muff-type earphones, which used to be the standard with Walkman and portable CD players. The ear buds positioned inside the ears are not as efficient at blocking outside sounds as the cushioned headsets. As a result, the volume knob often gets an extra turn to drown out the outside noise. To make matters even worse, the loud noise from the earphones is produced right inside the ear.
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