Radio over beeps have been used for decades on two way radios to mark the end of a transmission, and short versions like this one spread through gaming and roleplay communities online. The RickAlerts name comes from its existing listing, while the sound itself is shared as a quick tactical cue alongside clips like Enemy Spotted and bomb has been planted. Its brevity keeps it useful for edits, alerts and streams, where a single chirp instantly communicates that a speaker has finished and the channel is clear.