[Clarity] It comes with extra convinience as well as safety,The 1280x720P resolution on your smartphone gives you the clarity for the intruders. [Storage] Store up to 32 GB of your data, so that you never ever miss any details of the visitors at your home. [Durable] Ener-j's smart doorbell works in the extreme conditions like -20 degree and max 55 degree Celsius temperature..Doorbell offers homeowners a number of additional specification that go well beyond the normal doorbell. [Access] You can share the DOORBELL data to 4 accounts,so that your family members can also feel safe when they are alone.everyone has their own preferences when it comes to choosing intercom systems for their homes. [Ease & convenient] This smart doorbell is free from wires. Easy to install & just connect to your WiFi and ENER-J's APP,. A doorbell is the significant equipment of anyone's home, the reason it becomes the first part of the property of your home.