Magnetic Buzzer 12×7.5mm 3100Hz 85dB 

Electrical Specifications:   Type  Unit EMB- R1201B EMB-R1203B EMB-R1205B EMB-R1212B     Rated Voltage V 1.5 3.0 5.0 12     Operating Voltage  V 1.2~3.0 2~5 4~7 8~16 *  Rated Current (Max)  mA 20 30 30 30…