Wireless Bluetooth and WIFI Smart Home HD Video DoorBell Camera and also a Security Camera Monitor. This is a (BNIB) BRAND NEW IN THE BOX set. a gift from a friend. (My present apartment already had). 100% Working And 100% No Problem. No wirirng require!!!!!! it use 4 x AA battery as the source of power. (No need to drill the wall, no wiring involve) You are able to see the person at your front door of your house/apartment from your handphone wirelessly. (when he press the ring button just like the doorbell) It also a security video camera. ( Function : Recording 10 Seconds : For every time it has been triggered. You can view the 10 seconds video clip anytime at your convenient). when there is a motion in front of your door, it will trigger the camera and send notification to your handphone to alert you that there is a motion going on in front of your apartment/house. You are able to see, speak to the person in front of the door even though you are not at home. It is a 2 ways audio , i.e. you are able to SEE, TALK and HEAR to the person at the front door with your handphone or laptop even though you are NOT at home so long as you are connected to wifi or internet, the person won't be able to know whether you are at home, but able to hear and speak to you but will not able to see you. specs : Size : 69mm x 28mm x 132mm / 5.2 x 2.8 x 1.2 Inch Item specifics High Definition:720P(HD) Sensor:CMOS Network Interface:Wi-Fi/802.11/b/g Type:IP Camera Lens (mm):2.8mm Connectivity:WiFiVideo Compression Format:H.264 Function : Recording 10 Seconds : For every time it has been triggered https://www.youtube.com/watch?v=aQRNyKJjQ5I https://www.youtube.com/watch?v=eTU-EZD4RZQ Selling together with the box, wall bracket, screws.