Base three bands, GSM 900MHz, 1800MHz and 1900MHz, Support GSM/CDMA, and English and Chinese SMS to control system and motion detecting and arm/ disarm Can take photo and send to owner's cell phone or email box, which provides evidence for case. The picture to be transmitted can be adjusted to QCIF (160x128), CIF (320x240), VGA (640x480). Can pre-set 5 groups of alarm Phone Numbers with room No., can call the owner, town police and monitoring center. Listen-in function: Can clearly hear the voice, the sound of footstep, dug and safebreaker. Can make sure the safety of your home with password operation and control the alarm system by remote controllers and SMS to make it arm, disarm, listen-in and photo-taking. Can control the switch of light, air-condition and heater or cooker with the three Output ports by mobile phone or telephone. Control panel has three input ports, which can be connected with three wired detectors. There is a siren port for shift between silence and siren. Can work with all kinds of wireless detectors or sensors Save pictures in the SD card to provide for case