22mA Piezoelectric Buzzer Suitable for Wide Range of Electric Home Appliances Key Specifications/Special Features Rated voltage: 24V Rated current: 22mA Rated frequency: 2900 +/-500Hz Application: Gas and burglar alarms Home appliances: air conditioners, microwave ovens and various types of microcomputer-controlled home electronic appliances Automobile speed alarms, navigators, car stereos and other automobile equipment Toys, games and other simple electronic devices such as teaching aids Medical equipment Typewriters, word processors, compact disks