This GSM Alarm System adopts advanced mobile communication technology, supports SMA and dialing alarm. 8 wired defense zones and 99 wireless defense zones, when there is motion, real person voice prompt will sound and emergency alert information or calls will send to you. Let you know clearly and timely the situation of your home. Features: Apply advanced mobile communication technology, support SMA and dialing alarm. 8 wired defense zones and 99 wireless defense zones. Remote control coding, at most 5 wireless remote control can be coded. LCD display, built-in calendar clock, operate easily. Real person voice prompt for all operations. SMS reminding when low battery. SMS reminding when AC power lost & recover. Built-in intercom speaker. Built-in wireless transmitting module, can connect wireless siren and smart home appliances.(Optional) Host can be controlled by APP. Timeing arm and disam function. 6 groups of preset alarm phone numbers. 2 groups of preset alarm SMS numbers. 10-second recording voice message. Built-in artificial intelligent digital voice announcer. Built-in SMS message (English&Chinese). Remote control:Arm, Disarm, Monitoring, Intercom, etc. Additional function: It can be used as a mobile telephone, dialing phone number, call cost inqury and charging by the panel. One-key-control function: out arm, home arm, remote control arm, calling arm. Real-time, at home, 24 hours, bypass defense zones programming function. Wireless coding: easy to add additional wireless accessories. Event log query: auto records all information of 45 alarm events. Multi-type arm modes: remote control arm, our delay arm, stay arm, timing arm, calling arm. Built-in Lithium rechargeable battery. Specifications: Plug: 100-240V EU Wireless Frequency in Alarm: 433mhz Zone Number: 99 wireless zones, 8 wired zones Kit Configuration: Door/Window Sensor Alarm Type: SMS, PSTN, The Alarm Communication Interface: Wireless Power: DC12V /1A Volume: 110dB Arming Type: FR Remote-controller Alarm current: <450mA Output Number: 2 groups of SMS number, 6 groups of auto dial number Standby current: <55mA Password Keyboard: Yes GSM band: 850/900/1800/1900MHZ Fix time arm & disarm: 3 time set back up battery: rechargeable battery (Built in) Size: 18*13.5*2.8cm/7.1*5.1*1.1in Package Weight: 881g/31.1oz Package List: 1 * Alarm Host (Built in Batteries) 1 * PIR Sensor 1 * Door Sensor 1 * Siren Horn 2 * Remote Control 1 * Installation Kit 1 * Adapter 1 * User Manual .