Premium quality Mainly composed of multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell. Easy to use Can be Controlled easily, the multivibrator vibrates and outputs an audio signal. Widely application Using DC power, it is widely used on computers, printers, photocopiers, alarm, electronic toys, automotive electronic equipment, telephone, timer and other electronic products. Advantage Buzzer is an electronic sounder with integration structure. Connected to nominal power and the buzzer sounds continuously. Principle of operation The impedance matcher causes the sound of the piezoelectric buzzer. Specifications: Model: 2312 Color: black Diameter: 23 mm Height: 12 mm Cable length: 100 mm Sound pressure level: 85 to 95 decibels Nominal voltage: 12VDC Operating voltage range: 3V-24V Maximum current: 10mA Weight: 3g (approximately) Package includes: 1 x buzzer Note: 1. Please allow 1-3mm error in due to manual measurement. Thank you for your understanding. 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 the standard.