PNG MORE
Oxygen
Audio, volume, medium
DimGray
22x22
PNG ICO ICNS MORE
Oxygen-Refit
volume, medium, newschool
128x128
Fugue
media, Black, player
16x16
Human-O2
UI
Pixel
Fugue Icons
medium, tube, paint
printer, medium
ipod, media, medium
Computer & hardware
3D
Human o2
medium, Audio, volume
Network & communications
Smooth
Audio, medium, volume
player, medium, media