this reminds me of the phones that had the 'chirp' / push-to-talk feature that were popular in the early 2000's - which were hugely popular with people in vario

this reminds me of the phones that had the 'chirp' / push-to-talk feature that were popular in the early 2000's - which were hugely popular with people in various trades, service industries, etc - think telecom repair crews, construction crews, live event staff, etc - jobs where permanence of the information is not so important but realtime/async/hands-free was. could be a good fit.