Description Are you looking for a professional, yet affordable piezo buzzer? Are you in search of a sturdy, trustworthy tool that can do multiple works at once? If yes, look no further! Our professional piezo buzzer must meet your needs. It is one of the best choices for you. Features -Color: Black -Material: PPO -Size: 2.20X2.20X1.00cm/0.86X0.86X0.39in - Multivibrator vibrates and outputs audio signal. An impedance matcher drives piezoelectric buzzer sound. - Connected to rated power and the buzzer will sound continuously. - Electronic alarm buzzer with cable, which is made of insulation material. - Use for alarming you, make no defect to your health, which is the better item for your life and work. - Adopts precision production to stable characteristics and high reliability. Specification -Rated Voltage: 12V -Voltage Range: 3-24V -Rated Current: ≤12mA -Sound Output: ≥85dB -Resonant Frequency: 3000±500Hz -Operating Temperature: -20~+45℃ -Storage Temperature: -20~+60℃ Multivibrator vibrates and outputs audio signal. An impedance matcher drives piezoelectric buzzer sound. Connected to rated power and the buzzer will sound continuously. Electronic alarm buzzer with cable, which is made of insulation material. Use for alarming you, make no defect to your health, which is the better item for your life and work. Adopts precision production to stable characteristics and high reliability.