IP STYLE FLUSH BOXAX9157001 USE THIS MOUNTING BOX TO INSTALL THE AXIS IP STYLE INTO A WALL. THE FLUSH MOUNTING BOX HAS A SPECIAL ELEVATING FUNCTION. IT HELPS YOU ALIGN THE INTERCOM WITH A WALLS SURFACE SO THAT ONLY THE CORRECT PART OF THE INTERCOM SHOWS. IN OTHER WORDS A HOLE IN THE WALL WHICH IS TOO DEEP WONT RUIN THE WHOLE INSTALLATION. THE BOX HAS A UNIQUE TILT OUT MECHANISM WHICH GIVES YOU PLENTY OF ROOM TO WORK WITH CABLING.