Product Features:
Certificate of Europe Electromagnetic horn standard ECE R-28 EEC70/388 (From KBA-TUV Germany)
12V high quality Chromed Metal and ABS body material
510 Hz low tone sound
Chrome plated bracket for mounting is included
Suitable for boat, yacht, RV
Easy installation
Surface mount. No need to cut any surface other than running the wires
Can be mounted with two screws
Connection cable is located on the horn
IP56 Protection class
Mounting screws NOT included
Specifications:
Color:
Body: Chrome plated metal and black ABS
Voltage: 12V DC
Dimensions: 
Height: 4.3" (109mm)
Width: 3.6" (91mm)
Depth: 3.9" (99mm)
Diameter: 3.5" (88mm)
Weight: 13.1oz (372gr)