This Seachoice Phase II Drop-In Hidden Horn produces a loud, clear tone and it features a slim, low-profile design that makes it easy to install wherever desired. This horn is rated at 111 dB at one meter. It mounts from the outside, and the grille of choice screws on to create a front face. It comes with both a black ABS screw-in grille and a white ASA screw-in grille so you can choose the horn cover that looks best where it is installed. Each grille has a water-resistant fabric liner. This 12-volt horn has a maximum amp draw of 4 amps. It measures 2-In. H x 3 3/8-In. W x 3 ¼-In. D. One year warranty. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable.