■ Electronic Alarm Buzzer (Unused) ＜Intermittent/Operation Confirmed＞ ・Rated Voltage: DC12V ・Operating Voltage: 3-24V ・Sound Pressure (approx.): 95 decibels ・Size (approx.): Please refer to the photos for diameter, thickness, and hole position. ・Wire Length (approx.): 10cm ・External Material: Plastic ・Weight (approx.): 6g ・Everything in the photos is included. ※ The printing on the back may vary.