Features: 1) Rated voltage (V DC): 5 2) Operating voltage (V DC): 3 - 20 3) Max. current at rated voltage (mA): 10.0 / 5V DC 4) Min. sound pressure level: 90dB / 5V DC / 30cm 5) Resonant frequency: 2.9±0.5kHz 6) Lead wires: UL1007 AWG22, red and blue 7) Operating temperature: - 20 ~ 60°C 8) Storage temperature: - 30 ~ 70°C 9) Applications: alarm systems, remote controls, home appliances, communication equipment