The new menu system provides easy and intuitive operation. The bottom line of the dotmatrix display shows the software key functions which can be toggled with the left and right buttons. The directional keypad allows you to perform various operations and settings. Features. IPX7 Submersible rating. Superior audio performance. Total control of all communications Class D DSC functions. Aqua QuakeCompatibility. M424 506Specifications. Color Black. Country of Origin USA. Dimension 67.5 x 144.5 x 37 mm 2.66 x 5.69 x 1.46 in.