📡🗣️👂

#walkie-talkie #radio communication #transmit receive #handheld radio #voice comms #two-way radio

📻↔️📻

#walkie-talkie #two-way radio #radio link #communication pair #transmit receive #radio connection

📡↔️👂

#qsk #ham radio #amateur radio #full break-in #cw #radio communication #q code #transmit receive

💡↔️🔌

#data flow #optical communication #duplex connector #transmit receive #light connection #fiber interconnect