Features:* With dual network of GSM + telephone cable, the System is more secure and reliable.* With the quad-band GSM module for global use.* Includes 2 wired zones and 99 wireless zones.* Supports code pairing with 8 wireless remote controllers at the most.* LCD screen with a built-in clock.* With voice prompts for easy operations.* Supports 3 groups of timed arming and 3 groups of timed disarming.* The main device can dial alarm calls to 6 preset phone numbers.* The main device can send text alarm to 3 preset phone numbers.* With 10-second manual recording function to leave messages.* With built-in SMS service to send alarm messages automatically.* Includes multiple zone programming functions like Real-Time, Delay, 24 Hour, Bypass.* With Wireless Self-learning Code Pairing, new accessories can be installed conveniently, safely and effectively.* Off-site remote control allows Main Device Arming, Disarming, Monitoring, Intercom etc.