uxcell 2Pcs DC 6-15V HYD-2312 Passive Active Electronic Alarm Buzzer Sounder Product Name : Active Electronic Alarm Buzzer;Model : HYD-2312 Working Voltage : DC 6-15V;Body Size : 22 x 11mm / 0.87" x 0.4" (D*T) Cable Length : 10cm / 3.9";External Material : Plastic Color : Black;Weight : 8g Package Content : 2 x Active Electronic Alarm Buzzer