Feature:* This mini electronic beeper support DC 12V power supply and produce Intermittent high-decibel alarm sound up to 100dB. * 50mm mounting hole spacing, 2-wire pigtails easy to connect.* Just connect to to any power supply from DC12 Volts. Complete drive circuit incorporated for direct operation from DC power source. * Widely used in the modification, DIY electronics reminder projects or other area needs sound alarm. Specification:* Name: Active Buzzer* Type: Intermittent Sound* Rated Voltage: DC 12V* Max Rated Current: 10mA* Mini Sound Output: 100dB* Wire Length: 9cm* Hole Diameter: 4mm* Hole Distance: 50mm* Response Frequency: 2700+/-500Hz* Operating Temperature: -20C to 60C* Material: ABS Package included:* 1 x Active Electronic Alarm Buzzer