5 Pcs DC 3-24V Plastic Shell Continuous Sound Electronic Buzzer Alarm Product Name : Electronic Buzzer;Sound-making Type : Continuous Sound;Working Voltage : DC 3-24V Overall Size : 48 x 30x 15mm / 1.9" x1.2" x 0.6"(L*W*T);Wire Length : 19cm / 7.5" Mounting Hole Diameter : 3mm/ 0.1";Mounting Hole Distance : 40mm/ 1.6" External Material : Plastic;Color : Beige Weight : 42g;Package Content : 5 x Electronic Buzzer