Description: Electromagnetic SMD Active Buzzer. Small size; Good sound quality. Rated Voltage: 5V DC; Operating Voltage: 4-7V DC. Output Frequency: 2400 ±400Hz. Application Range: Communication Products, Computer products, Electronic consumer products,etc. Specification: Product Name: SMD Electromagnetic Buzzer Material: LCP Dimension: 12.8x10x9mm/0.5x0.39x0.35inch Rated Voltage: 5V DC Operating Voltage: 4-7V DC Rated Current(max.): 30mA Sound Pressure Level: 85dB/min Output Frequency: 2400 ±400Hz Operating Temperature: -30? ~ 70? Storage Temperature: -40? ~ 80? Source: Active Mounted Type: SMD Weight: 2g Package Includes: 1 Piece SMD Electromagnetic Buzzer Note: The above size is measured by hand, please allow slightly difference. Thanks !