uxcell 10pcs DC 3V Industrial Electronic Continuous Sound Buzzer Black 12x9mm Product Name : Electronic AlarmBuzzer;Sound-making Type : Continuous Sound Rated Voltage : DC 3V;Body Size(terminal not included) : 12 x 9mm / 0.47"x 0.35"(D*T) Terminal Pitch : 7mm / 0.28";External Material : Plastic Color : Black;Weight : 17g Package Content : 10 x Electronic AlarmBuzzer