hiskeyd
Dec4-08, 05:49 PM
Hi,
Does anyone know of a piezoelectric horn siren that can operate at above 30,000 Hz and be powered by a 9 volt battery?
Or really any speaker / horn that can output in the range of 80-90 decibels at 5 feet-ish away and can operate above 30,000 Hz and be powered by a 9 volt battery. Preferably the speaker / horn would be small, the smaller the better.
Does anyone know of a piezoelectric horn siren that can operate at above 30,000 Hz and be powered by a 9 volt battery?
Or really any speaker / horn that can output in the range of 80-90 decibels at 5 feet-ish away and can operate above 30,000 Hz and be powered by a 9 volt battery. Preferably the speaker / horn would be small, the smaller the better.