11W*9.0Hmm 4000Hz 80dB MaxCurrentConsumption 2mA RoteVolt 5V Capacitance 11Kpf 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: SMD