Description Active piezo electronic buzzer supports DC 3-24V wide voltage power supply. With 2-wire pigtails, just connect to any power supply from 3 to 24 Volts. Complete drive circuit incorporated for direct operation from DC power source. Features -Color:Black -Material:PPO-Size:2.20X2.20X1.00cm/0.86X0.86X0.39in- Active piezo electronic buzzer supports DC 3-24V wide voltage power supply.- With 2-wire pigtails, just connect to any power supply from 3 to 24 Volts.- Complete drive circuit incorporated for direct operation from DC power source.- Widely used in car modification, electronics reminder projects or other areas need sound alarm.- It is manufactured with professional technology to ensure the of the product and can work for a long time.Specification-Rated Voltage: 12V-Voltage Range: 3-24V-Rated Current: 12mA-Sound Output: 85dB-Resonant Frequency: 3000500Hz-Operating Temperature: -20~+45-Storage Temperature: -20~+60 Package list3 x Active Piezo Buzzers