PCB Mount type, SMD, External Drive, Magnetic 2700Hz 80dB Size Square 8.5x8.5x3mm, Low Profile, Sound output on side.
This buzzer does not contains internal driving circuit, so do not expect to just power on and hear something. It needs square wave of 4Khz to drive. The black case provides cavity for resonance and protection. You can vary its frequency to create tones just like you hear from microwave or washing machine.
You can use frequency from 100 hz to 10 Khz but highest amplitude you will get around 4 Khz. Please see graph of frequency response above.
This is how we use it in our designs at Sunrom.