... on the GSM network 4 wired and 6 wireless defense areas;6 voice phones and 3 message phones;1 normally open ... Current:<55mAAlarming Current: <450mAWireless Frequency:315MHz, 2262/4.7MΩGSM Frequency:900/ 1800/ 1900MHzBack-up Battery:NI-HI AAA*6 ... : 110dBKits:1 main panel, 1 wireless PIR detector, 1 wireless door sensor,1 siren, 2 remote controllers, 1 GSM antenna , 1 power supply, 1 manual GSM/GPRS alarm ...