Kind of like the Timex Datalink (1994) [1][2]
[1] https://en.wikipedia.org/wiki/Timex_Datalink#Wireless_data_t... [2] https://youtu.be/2VmtPaiOBwI?t=1m3s
[1] https://en.wikipedia.org/wiki/Timex_Datalink#Wireless_data_t... [2] https://youtu.be/2VmtPaiOBwI?t=1m3s