PNG ICO ICNS MORE
Matte: Basic
off, sound, voice
SteelBlue
32x32
PNG SVG MORE
Network & communications
Flat
MTT Web Icons
recording, speak, mic
504x512
PNG MORE
Business & finance
Pixel
24x24 Free Pixel Icons
Chat, messages, Messenger
24x24
Messenger, Message, Chat
16x16 Free Application Icons
speech, Message, Messenger
16x16