1 Self-check function 2 illegal arm or disarm function 3 Telephone line anti-cut function 4 Built-in rechargeable Lithium battery with high-capacitance 5 Low power indication function 6 40 zones with LCD display 7 32 wireless zones and eight wired zones 8 Adapted double zones technology 9 Can pre-store six groups of telephone numbers 10 Wireless connection between detectors and alarm host 11 Illegal arm or disarm function 12 Polygon-07 system can program three groups of time to timely arm or disarm the alarm system 13 If you are interested in this product, you can send an email to nancyshenan at gmail dot com