... Buzzer -Buzzer alarm -Application:Mobile,Computer,Medical equipment Buzzer , 12*7.5mm buzzer 1.Company Profile-Dongguan Sweetsound Electronic Company ... components.Our products have been widely applied for various kinds of alarms,satellite recievers,microwave ovens,computers,calculators,digital ... the past 16 years.2.Main Feature of buzzer:(12*7.5mm,2700Hz,5VDC)-Small size;-High sound pressure;- ...