1. IP52, Two Tone Decoding Format 2. Six call per channel / 4 individual and 2 group call 3. 120 seconds memory (1-4 stored voice, each for 30 seconds ) optional function feature 4. Loud clear alert level 5. Large volume control knobs 6. Slide switch with on/off, vibrate, alert selection 7. Tone & vibrate Alert 8. Monitor with carrier squelch