If you don't want to miss any visitors, even when you're not at home, then you need a portable "door peephole".
iDoorCam is exactly the kind of doorbell that turns your smartphone into a "door peephole". According to Engadget, it is a doorbell equipped with an infrared camera, supporting WiFi and motion sensing. It has a round design, with a diameter of 7 cm and a height of 2.75 cm. The principle is very simple: by connecting to your home WiFi, when someone presses the doorbell, the homeowner's phone with the iDoorCam app installed will receive a notification, allowing the homeowner to confirm the visitor's identity and engage in video dialogue.
Andrew Thomas, co-founder of iDoorCam, pointed out that the doorbell remains in real-time connection, and the homeowner's phone can receive notifications whether it is in a WiFi environment or on a mobile network. Therefore, the homeowner can check who is outside the door at any time and place, and can take screenshots and record videos if necessary.
iDoorCam supports multiple users, meaning different family members can receive doorbell notifications simultaneously. In addition, iDoorCam does not require batteries and supports stereo sound.
The pre-sale price of iDoorCam on its official website is $165, but if you fund it on the crowdfunding platform Indiegogo, it only costs $99.