Which famous military product innovation was originally nicknamed 'The Handie-Talkie' before becoming widely known by another name during WWII?

Throughout history, military technology breakthroughs have changed the course of warfare and often transitioned into civilian applications. Some military innovations became legendary products with fascinating development stories behind them. This poll tests your knowledge of a revolutionary product innovation that transformed battlefield communications and later influenced civilian technology. Can you identify the correct origin story of this military innovation?

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The walkie-talkie, developed by Motorola (then Galvin Manufacturing Corporation) in 1940 as the SCR-300 backpack radio
The field telephone, developed by Bell Laboratories in 1942 as the TP-3 portable communication device
The combat radio headset, developed by RCA in 1941 as the SCR-536 hands-free communication system
The signal corps transceiver, developed by Western Electric in 1939 as the BC-611 portable field communicator