uxcell DC 3V-24V Miniature Continuous Sounder Electronic Alarm Buzzer Beep Product Name : Electronic Buzzer;Model No. : SFM-27-I;Sound-making Type : Continuous Sound Rated Voltage : DC 3V-24V;Body Diameter : 29mm / 1.1";Overall Size : 50 x 30 x 15mm/ 2" x 1.2" x 0.6"(L*W*H) Mounting Hole Size : 3.5 x 3mm / 0.14 x 0 .12"(L*W);Mounting Hole Distance : 40mm / 1.6";Wire Length : 11cm / 4.3" External Material : Plastic;Color : White Weight : 8g;Package Content : 1 x Electronic Buzzer