PNG MORE
UI
Glyph
Elysium Icons
eq, equalizer, sound
DimGray
24x24
PNG ICO ICNS SVG MORE
Google Material Design icons
multitrack, Audio
Black
512x512
Very Basic. Android L (Lollipop)
File, music, documents
PNG ICO ICNS MORE
Windows 8 metro style
Audio, wave
DarkSlateGray
File, Audio
Free Mobile Icon Kit
converter, Audio
64x64