PNG ICO ICNS MORE
UI
Pixel
Fugue Icons
speaker, volume, low
Black
16x16
volume, speaker
Lynx Black
high, speaker, volume
medium, Audio, volume
volume, Audio, low
Audio, volume, muted
PNG MORE
BWPX
volume
Gray
18x18
Down, volume
Up, volume
volume, Mid
Gnome icons
Audio, low, volume
24x24
medium, volume, Audio
volume, Mute
Tango
volume, low, Audio
32x32
high, Audio, volume
muted, volume, Audio
3D
Nuvola
Mix, volume
DarkGreen
48x48
22x22
Crystal Clear
player, volume
DarkSlateGray
Green