3Pcs Black 23mmx20mm Industrial Electronic Alarm Buzzer DC3-24V Product Name : PiezoBuzzer Sounder;Voltage : DC3-24V Type : Continuous Sound;Total Size(Pin Not Included) : 23 x 20mm/ 0.9"x 0.8"(D*H) Pin Distance : 15mm/ 0.6";Pin Size : 0.8 x 8mm/ 0.03" x 0.32" Materials : Plastic, Metal;Main Color : Balck TotalWeight : 16g;Package Content : 3 x PiezoBuzzer Sounder