... this high-tech wireless equipment, you can detect anywhere at anytime by dialing video calls with 3G mobile phone. The 3G ... environmental change and alarm.5,Multimode alarm: Camera can send alarm messages by SMS, video call, voice call6,Sensor detection (W-1B): ... 10,Easy installation: Wireless connection. The product can be installed at any place you wanted.11,Built-in Lithium battery: Rechargeable ...