... : 1.7 wired and 99 wireless defense zones; 2. LCD screen with time clock display; 3. Voice prompt for all operations; 4.3 ... AAA*6 DC7.2V Siren Volume: 110dB Kits: 1 main panel, 1 wireless PIR detector, 1 wireless door sensor, 1 siren ... , school, financial office, office, Particularly suitable for elderly and child in emergency. Spanish voice gsm lcd intelligent alarm system with LCD display