FREDI Smart Home WiFi Remote Video Door Phone Intercom Doorbell Camera HD 720P Support P2P Alarm IR Night Vision Supports iOS/Android System Home Security Camera: It has a HD1.3MP CMOS image sensor, Support take photo and video recording,Real-time recording everything front your door day and night P2P Technology: It Supports iPhone/Android mobilephone and tablet PC,when visitors press it,you can real-time video and talk anywhere in the world Unlock Function: After you receive the call from visitor,you could touchUnlockbutton to open the door Alarm Function: It has PIR alarm and tamper alarm,In case you feel danger or threat from your door,you could touch Alarm button,and the door will sound a warning WiFi Connection: WiFi video doorbell connects to network via wireless router or network cable