ITEM NAME:DC 9-15V HYD-4218 Active piezo electronic alarm buzzer W5Q1 DC 9-15V HYD-4218 Active piezo electronic alarm buzzer W5Q1 Product Name: Active piezo electronic alarm buzzer; model:HYD-4218 Voltage: DC9-15V; total size (not included pin):42 X17 mm /1.6"×0.67"(D* H) The length of the cable: 11 cm /4.3 "; Material: Plastic, metal Main Color: Black; Net weight: 25 grams Package Contents: 1 x active piezo electronic alarm buzzer Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm..Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Net weight: 25 grams. Main Color: Black;.