Wireless anti-theft electronic alarm system is an innovative wireless mobile intelligent warning device. With digital signal processing techniques and imported STC microprocessor, and a variety of technologies including digital voice announcer, English SMS, etc In addition, this alarm system is highly automatic, giving automatic voice or Sms alert in the event of emergency without intensive manual settings required. Features: - Wireless interaction (can connect to siren) - 4 wired and 6 wireless defense zones - SMS remote control preset & arm/disarm the main panel - Built-in intelligent English messenger - Alarm locking memory and information clear for easy checking Arm, disarm, monitor and intercom by remote calling the alarm unit - The built-in rechargeable battery is available to provide power supply nearly 5hours automatically after power is off - 10-second automatic message recording NOTE: - SIM card not included What's in the box 1x Wireless Alarm System Host (central unit) 1x Wireless Door Magnetic Sensor Detector 1x Wired Siren 2x Remote Controller 1x Antenna 1x AC100-240V/DC12V Power Adapter