PNG ICO ICNS SVG MORE
Mixed
Glyph
Free Misc Icon Set 2
off, sound, speaker
Black
512x512
on, sound, Audio
News and Magazine
volume, media, Multimedia
DarkSlateGray
Cool Application Icons
Min, sound, player
Geomicons
volume, speaker
PNG SVG MORE
gcons
volume
Iconic
Mute, volume
Pittogrammi
speaker, volume, sound
sound, speaker, volume
volume, Loud, sound
Flat UI Icons Free
music, sound, speaker
WPZOOM Developer Icon Set
PNG ICO ICNS MORE
Retina Display Icons
volume, Down
Silver
64x64
Up, volume