Only doorbell, not include battery and Memory Card. The Doorbell power supply:AC(8/24V)external power or 3pcs 18650 battery
PIR Motion Detection - with a passive PIR sensor, you can get a notification on your phone to alert you when visitors are at your front door
Night Vision - Just switch to Night mode on your ToSee App and the light sensors on the doorbell will provide a clear view in the dark.
Family connection and real-time sharing - 4 mobile phones could monitor and share the image of doorbell at the same time, but only one user could talk on the intercom directly. Compatible with iOS and Android operating systems.
Simple operation - easy to connect and set up the doorbell and ToSee App Scan the QR code below, or search "ToSee" in Google Play app store to download "ToSee" AppReal-time view of the doorbell