3015B 5-24V intermittent sound of the buzzer

Material: Electronic parts, ABS; Net weight: 35g The main colors: white, green Product Name: Electronic buzzer; Working voltage: DC 3-24V; Rated voltage: DC 12V Rated current: 30mA; Sound output (10cm): More than 90dB; Body diameter: 30mm / 1.2 " Mounting Hole Diameter: 3.5mm / 0.14 "Hole Distance: 38mm / 1.5" Dimensions: 30 x 15mm / 1.2 "x 0.6" (D * H)