Electrical Characteristics
Installation:	PIN
Dimensions (mm):	∮12*9
Voltage (V):	1.5V,1/2 duty,square wave
Max Current(mA):	70mA
Control Voltage(V):	1~2
Frequency (Hz):	2400
Tone:	MT1209
SPL (dB):	85@10CM

Others
Operation Temp.(℃):	-30~70