Replace your outdated peephole with a modern video doorbell that maintains your door ' s original look while adding smart security features When someone presses the doorbell, a push notification can be sent to your smartphone immediately; with a built-in microphone, you can see and talk to your visitors anytimes, anywheres Built-in LED lamp beads and light sensors, the picture is clear at night; angles can reach 90°, and it can automatically switches from daytime mode to night modes There are 38 pieces of music and the volumes can be adjusted according to your preferences Supports 2.4G and application connection, 480p high resolution, to present you with clearer pictures and videos and more detail, Manufacturer: BULAIDAI