PNG MORE
Gaming & gambling
Pixel
Simply 8-bits #9
radio
Gainsboro
96x96
Mixed
Simply 8-bits #12
radio, pro, Tunein
DarkSlateGray
Tunein, radio
PNG ICO ICNS MORE
UI
Blueberry
button, radio, off
YellowGreen
32x32
on, button, radio
Windows 8 Pack (Metro Style)
26x26
IconSweets 2
steps, Foot, Feet
Black
40x40
PixeloPhilia 2
Broadcast, radio
Fugue Icons
radio, buttons, ui
Gray
16x16
invisible, radio, button
WhiteSmoke
ui, button, radio
Mini icons 2
Lavender
10x10
Gnome icons
radio, Form
24x24
Circle, Draw, Form