ITEM NAME:Alarm buzzer DC 12V 85dB mini electronic alarm buzzers constant tone ZY FT Specifications: Rated Voltager: 12V DC Operating Voltage: 8-15V DC Max. Rated Current: 25mA at 12V DC Min. Sound Pressure Level: 75dB at 12VDC/20cm Resonant Frequency: 400Â ±100Hz Operating Temperature: -20Â °~+60Â ° Size(approx): 3.2x1.2x0.9cm/1.26x0.47x0.35" Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement..1 x Alarm Buzzer. Rated Current: 25mA at 12V DC. Sound Pressure Level: 75dB at 12VDC/20cm. Due to the difference between different monitors, the picture may not reflect the actual color of the item.