... >315 MHz or 433MHz Frequenc gsm security alarm with Auto PIR Sensor 315/433Mhz Frquency 10 Wireless Zone 5 Emergency Call Number ... parts are wireless connection >Auto search SIM card signal, no need telephone cable >Send SMS to cell phone, and dial phone call automatically ... main panel, 1 wireless PIR detector, 1 wireless door sensor,1 siren, 2 remote controllers, 1 power supply, 1 GSM antenna, 1 manual ...