1. Date of download: 7/2/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Short-term Auditory Effects of Listening to an MP3 Player Arch Otolaryngol Head Neck Surg. 2010;136(6):538-548. doi:10.1001/archoto.2010.84 The 1-hour equivalent continuous A-weighted sound pressure level (L Aeq,1h ) at 1/3-octave frequency bands at various gain settings for the earbuds (open symbols) and supra-aural (SA) headphones (solid symbols). dBA indicates A-weighted decibels. Figure Legend:

2. Date of download: 7/2/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Short-term Auditory Effects of Listening to an MP3 Player Arch Otolaryngol Head Neck Surg. 2010;136(6):538-548. doi:10.1001/archoto.2010.84 Mean (circles) (SD; [error bars]) of the hearing thresholds before (preexposure) and after (postexposure) listening to 1 hour of music at measured frequencies for both earphone styles and different gain settings. HL indicates hearing level. Figure Legend:

3. Date of download: 7/2/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Short-term Auditory Effects of Listening to an MP3 Player Arch Otolaryngol Head Neck Surg. 2010;136(6):538-548. doi:10.1001/archoto.2010.84 Mean (circles) (SD [error bars]) of the amplitude (black lines) and noise levels (blue lines) of the transient-evoked otoacoustic emissions before (preexposure) and after (postexposure) listening to 1 hour of music at frequency bands with center frequencies from 1.0 to 4.0 kHz are reflected for both earphone styles and different gain settings. SPL indicates sound pressure level. Figure Legend:

4. Date of download: 7/2/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Short-term Auditory Effects of Listening to an MP3 Player Arch Otolaryngol Head Neck Surg. 2010;136(6):538-548. doi:10.1001/archoto.2010.84 Mean (circles) (SD [error bars]) for the amplitude (black lines) and noise levels (blue lines) of the distortion product otoacoustic emissions before (preexposure) and after (postexposure) listening to 1 hour of music at measured frequencies for both earphone styles and different gain settings. SPL indicates sound pressure level. Figure Legend: