Product Name: 2016 New Security Alarm System WiFi / GPRS / GSM Smart Home Alarm with Android /Ios APP Control Model NO.: YL-007M3GB Wiring Mode: Sub-Line System Receive Frequency: 433.92MHz Networking Mode: GSM Dial-up Alarm Volume (within 1m): ?100dB Certification: CE, FCC, CCC, GS Usage: Door, Auto, Personal, Window, Fire, Smoke Function: Networked Type: Wireless Alarm Host Wireless Frequency: 315/433/868MHz Wireless Sensors: 100 PCS Language Support: English, Spanish, Russian, French, Italian etc. Backup Battery: 3.7V / 500mAh Li Battery Service: OEM / ODM Certificates: Ce FCC ISO9001 RoHS Warranty: 3 Years GSM Home Alarm Working Temprature: -10-50