Nagra is the trademark referring to any of the series of mostly battery-operated portable professional audio recorders produced by Kudelski SA, based in Cheseaux-sur-Lausanne, Switzerland.
The machines were initially designed by Polish inventor Stefan Kudelski, and his company won numerous technical awards for their precision and reliability.
Nagra means "will record" in Polish, the mother tongue of Kudelski.
Read more about Nagra: History, Models, Other Equipment