๐Ÿ”ฅโ†—๏ธ๐Ÿ’ฌ

#smoke signal #sending message #fire message #distant communication #message transmission

โšก๏ธยทโž–ยทโž–๐Ÿ“„

#electrical signal #dot dash #message transmission

๐Ÿ“ใ€ฐ๏ธโ˜๏ธ

#digital text transfer #text waves #cloud messaging #data in the air #message transmission