Need reliable performance and communication qualityThis transceiver is ideal for small-to-mid sized systems for public safety, large industry to light commercial, the IC-F5021 series offers multiple signaling, advanced scanning, improved external channel control capability and wide frequency coverage all wrapped inside a compact body thats constructed of rugged aluminum die-cast chassis with a polycarbonate front panel.Features built-in popular signalings, including 2-Tone, 5-Tone, CTCSS and DTCS capabilities as standard to set up your own talk groups, PTT ID and quiet stand-by when others are communicating.Key Features128 memory channels: 128 channels (max.) separated into eight memory zones. Memory channels can be identified with the 8-character channel name and selected easily with the up/down buttons.Front mounted speaker: 4 watts (typ.) front mounted speakers delivers clear and loud audio. With the speaker facing the operator, audio can be clearly heard without impediment during operations.Six programmable buttons: A pair of up/down and P0-P3 function assignable buttons allow you to customize functions to meet specific needs. An independent volume knob offers simple, convenient operation.Most popular signalings built-in: Use the built-in 2-Tone, 5-Tone, CTCSS and DTCS capabilities as standard to set up your own talk groups, PTT ID and quiet stand-by when others are talking. The IC-F5-21 series has added CTCSS/DTCS high speed decode and 2-Tone decode accuracy.MDC 1200 compatible: The following MDC features are available with the built-in MDC signaling: PTT ID (TX/RX), Radio check (RX), Radio stun (RX), Radio revive (RX), Emergency TX/RX (No ACK), 5 alias table (max.).Multiple 2-tone, multiple 5-tone: Up to ten 2-tone and eight 5-tone codes can be decoded on a channel. When a matched tone is received, the following items are programmable for each code.Radio kill, stun and revive: The radio kill/stun functions disable a lost or stolen radio over the air, eliminating security threats from undesired listeners. When the stun command is received, all functions will be temporarily locked out until the revive command is received or the unlock password is entered.Lone worker function: