Description: Piezoelectric SMD Passive Buzzer. Small size; Good sound quality; Low power consumption. Rated Voltage: 5V; Operating Voltage: 1-25V. Output Frequency: 4000 ±300Hz. Application Range: communication, household appliances, automobile, electric bicycle, UPS power, alarm; Instruments, electronic sound toys and electronic clocks. Specification: Product Name: SMD Piezo Buzzer Material: LCP Dimension: 12x12x3mm/0.47x0.47x0.12inch Rated Voltage: 5V Operating Voltage: 1-25V Output Frequency: 4000 ±300Hz Rated Current(max.): 3mA Sound Pressure Level: 76dB/min Operating Temperature: -25? ~ 70? Storage Temperature: -30? ~ 80? Channel Number: Dual Source: Passive Mounted Type: SMD Weight: 0.4g Package Includes: 1 Piece SMD Piezo Passive Buzzer Note: The above size is measured by hand, please allow slightly difference. Thanks !