Support gsm frequency 850/900/1800/1900 mhz, 315/433 mhz optional 8 wired guarding zones for connecting wired sensors, 1 x relay outputs, can control home appliances remotely through the relay output;40 wireless guarding zones; Sms 5 phones automatically while alarming Call 5 phones automatically while alarming and drive wiretap, can clearly hear the voice on the scene. Digital inputs are adopted opti cal-coupled isolators, which can prevent external high voltage from destroying internal. Arm/disarm and program the system by phone & sms Record function: maximum recording time:1 minute Tamper device: arming while the control panel removing or shaking. With standby rechargeable battery. The host automatically stores system status, while its power is off. Packaging weight: 1.3kg Packaging dimension: 290(l)*270(w)* 85(h) mm Standard package included:bl-5000 mainframe x1?remote controller x2?wired mini siren x1?wireless digital keypad x1?ac adaptorx1?user manual x1;