uxcell 10 Pieces Industrial Electronic Continuous Sound Buzzer DC 3V 12mmx9mm Product Name : Electromagnetic Buzzer;Sound-making Type : Continuous Sound Package Type : SOT;Rated Voltage : DC 3V Body Size(Terminal not included) : 12 x 9mm / 0.47"x 0.35"(D*H);Terminal Pitch : 7mm / 0.28" External Material : Plastic;Color : Black Weight : 17g;Package Content : 10 x Electromagnetic Buzzer