IP57 waterproof protection means the F70/F80 series can be submerged in 1 meter of water for 30 minutes. The F70/F80 series can withstand rugged use even under harsh weather conditions. Use the built-in CTCSS, DTCS, 2-Tone, 5-Tone and BIIS capability to set up your own talk groups and quiet stand-by when others are talking. You can also set up selective calls to individuals or control a repeater. Up to 10 2-Tone and 8 5-Tone codes can be decoded on a single memory channel. This is perfect for professionals who require multiple district paging on one channel. When a matched tone is received, the following items are programmable for each code. The large high contrast LCD clearly shows a variety of information with a full dot-matrix display. Program the display to show either 1 line with 12 characters or 2 lines with 24 characters. Status icons are displayed at the top and the functions assigned to the P buttons (P0P3) are shown at the bottom of the display.