Symbols from
Alexander Moore
paket Snowish
under GNU/GPL
http://findicons.com/pack/2152/snowish

mute & unmute from
brsev
paket vrsev
Creative Commons Attribution
http://findicons.com/pack/949/token

iconsweet2
http://www.iconsweets2.com/

Default Radio, TV, Data
http://icons8.com/download-huge-windows8-set/