Description: _x000D_Buzzer is an electronic sounder with integration structure. Using DC power, it is widely used on computers, printers, photocopiers, alarm, electronic toys, automotive electronic equipment, telephone, timer and other electronic products. _x000D__x000D__x000D_Features: _x000D_1, Piezoelectric buzzer is mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell._x000D_2, Multivibrator is composed of transistors or integrated circuits. When switched on, multivibrator vibrates and outputs audio signal. _x000D_3, Impedance matcher drives piezoelectric buzzer sound._x000D_4, Connected to rated power and the buzzer will sound continuously._x000D_5, Can be controlled conveniently. _x000D__x000D__x000D_Specifications: _x000D_Model: 2312 _x000D_Color: Black_x000D_Diameter: 23mm _x000D_Height: 12mm _x000D_Cable Length: 100mm _x000D_Sound Pressure Level: 85 to 95 decibels_x000D_Rated Voltage: 12VDC _x000D_Working Voltage Range: 3V-24V _x000D__x000D_Max Current: 10mA _x000D_Weight: 3g(approx.) _x000D__x000D__x000D_Package includes:_x000D_1 x Buzzer _x000D__x000D__x000D_Note:_x000D_1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding._x000D__x000D_2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell 2Multivibrator vibrates and outputs audio signal 3Impedance matcher drives piezoelectric buzzer sound 4Connected to rated power and the buzzer will sound continuously 5Can be controlled conveniently