Support gsm frequency 850/900/1800/1900 mhz, 315/433 mhz optional 40 wireless guarding zones 2, 000, 000 pixel App supported Send 3 groups sms, mms, call, email Support sd card With camera & pir itself Can send mms to your mobile phone. Can send picture to your e-mail. Can match wireless detectors/sensors with mainframe by learning code. Ir thermo image monitoring and detection for moving objects, the double detection technology can eliminate the false alarm caused by environmental reasons. With ir night vision camera, it provides full time 24 hours day and night monitoring function. Arm/disarm/partial arm by remote controller or sms. Auto-dial 1 preset phone numbers of alarm center