Resonance Frequency : 3.3±0.5KHz Operating Voltage: 3-24VDC Rated Voltage: 12VDC Current Consumption: 15mA Max.at Rated Voltage Sound Pressure Level: 85dB Min at Rated Voltage at 10cm Tone Nature : Constant sound Operating Temp: -40~+85°C Weight: 6g Housing Material: PPO