SMD Piezo Buzzer, SMD Piezo Transducer, Piezo Buzzer, Piezo Transducer, SMD Magnetic Buzzer, SMD Magnetic Transducer, Magnetic Buzzer, Magnetic Transducer Operating Voltage(V): 12 Rated Voltage(V): 3.3-16 Dimension(mm): ?17.0 - ?24.0 Total Height (mm): 10.0-12.0 Application: cellular phones, pagers, communication equipment, computers, household appliances, security and electronic devices