100% brand new and high quality Introduction: ABS external material with 2 wire, DC 3-24V operating voltage, convenient for wiring. Decibel: 95DB, continuous sound beep. An ideal item for machinery equipment, oven, electric cabinet, industrial using, etc. Features: Support DC 3-24V power supply, this mini electronic beeper produces continous high-decibel alarm sound up to 95dB. Complete drive circuit incorporated for direct operation from DC power source. Active drive inside buzzer and simplify your design, only needs to control buzzer on or off. With 2-wire pigtails, easy to mount