You can also set up selective calls to individuals or control a repeater. Dot matrix, multi-function LCD Using a high contrast LCD, the ICF1721/F1821 series shows operating channels, tone and other settings clearly under nearly any lighting conditions. With a dot matrix display, upper and lower case characters can be easily distinguished. In addition, you can change the display setting to show one line and 12 characters, or two lines and 24 characters via programming. Radio stun/kill and Power-on password function The radio stun/kill functions disable a lost or stolen radio over the air, eliminating security threats from undesired listeners. The power-on password prevents unauthorized people turning on the radio. Multiple 2-Tone, Multiple 5-Tone Encode or decode up to 10 2-Tone, 8 5-Tone codes 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. · Bell icon · Answer back · Stun · Beep sound · Auto transmit · Scan · External out Public address (PA) and RX speaker functions When an external loud speaker is connected with the radio, you can speak through the radio's microphone. The RX speaker function allows you to relay the received audio over the loud speaker. Two line setting display example Heavy-duty microphone, HM-148 The new heavy-duty hand microphone, HM-148, uses a dynamic design that is made to handle punishment. The oversized dimensions allow for easy use with gloves on. And the curl cord can be easily replaced by simply opening the case ­ easy maintenance for long term use. 256 memory channels, 32 zones Up to 256 memory channels can be divided into 32 memory zones, and allows you quick access to the intended channel...