MINIATURE DC BUZZERS – 6V DC or 9V DC - This series of single tone, magnetic buzzers Provides a minimum sound pressure (at rated voltages) of 75db. Small and compact, with pigtail leads for connections. No moving contacts to produce arcing, no RF noise. Low current requirements* and very economical. Maximum width and length are: 0.630” and 1.30” * Stock number B816 draws a maximum of 20 milliamps; all others draw a maximum of 15mA at the rated voltages.