TOOGOO(R) DC 9-15V HYD-4218 Active Piezo Electronic Alarm Buzzer Product Name : Active Piezo Electronic Alarm Buzzer;Model : HYD-4218 Voltage : DC 9-15V;Total Size(Pin Not Included) : 42 x 17mm/1.6" x 0.67"(D*H) Cable Length : 11cm/4.3";Materials : Plastic, Metal Main Color : Balck;Net Weight : 25g Package Content : 1 x Active Piezo Electronic Alarm Buzzer