13W*2.5Hmm 4000Hz 80DB MaxCurrentConsumption 5mA RoteVolt 5V Capacitance 10Kpf Soldering Process: Reflow Soldering Applications: Telephone, Clocks, Medical Equipment, Mobile Phone, Toys, Official Supplies, Note Computer, Microwave Ovens, Air Conditioners, Home Appliance, Automatic Controlling Devices. Features: flat Buzzer