How to Measure and Compare Headphone Listening Levels

Measuring actual listening levels is eye-opening. Wonder Decibel turns your iPhone into a practical decibel meter for checking headphone volume.

Place headphones on a soft surface, position your iPhone's microphone near the earcup, and play content at your typical volume.

Compare different volume levels and content types. Music at typical volume might read differently than podcasts.

Export findings as a reference. A practical decibel meter helps protect hearing through awareness.