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SparkFun will be closed for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Darkness

Member Since: July 20, 2010

Country: United States

  • How do you drive these? By feeding it at a certain frequency around 2kHz?
    How loud are these? I need to generate something like a whistle tone (so not constant frequency) that should be audible outdoor at around 50 meters.

No public wish lists :(