Apple In-Ear Headphones with Remote and Mic: Getting optimal audio quality

For optimal audio quality, insert the Apple In-Ear Headphones so they have a good seal, and make sure the mesh cap is clear of obstruction. If a good seal is not made, you may notice the audio quality is lacking bass or sounding "tinny." If the mesh caps are clogged with debris or earwax, you may notice the audio quality is lacking definition or sounding "muddy."