Used for a wide variety of applications, including alarm clocks, telephones and computers, this 76dB Piezo Buzzer operates on 6-18VDC, carrying 10mA current at 12V, with a tame buzzer tone rating of 2,800Hz. 6-18VDC Maximum current: 10mA current at 12V 2,800Hz
That is all about to know about buzzers. To operate it with an Arduino you need a separate power supply, and switch it on/off with a transistor
Sometimes it helps to say what spec you are looking for and why. If you have nothing and just needed to
know voltage/current specs then there is no need to say anything. If you were looking for the frequency
there might be a reason to mention why. I assume you just wanted to know the operating specs.
robtillaart:
That is all about to know about buzzers. To operate it with an Arduino you need a separate power supply, and switch it on/off with a transistor