1Intelligent infrared recognition, will automatically switch the night vision mode when the light is insufficient, so that you can see any abnormalities outside the door at night, and monitor the safety of the whole family. 2WiFi connection, 24 hours automatic detection of abnormalities and capture and video (requires storage device) and push abnormal messages to the mobile phone to remind at the same time. 3Built with highquality shell, unique design, easy installation, onebutton start has never been easier. 50m/54.7yd strong penetration, no longer have to worry about not receiving the signal or no sound. 4Support mobile phone realtime monitoring, even if you are away from home, actively wake up monitoring anytime and anywhere, master the dynamics with one hand, so that you will not miss any screens. 5WiFi wireless connection does not require wiring, the doorbell is equipped with a battery and the signal is stable. The 166 lens has twice the field of view, and the corners of the door, yard, corridor, aisle are clear. 6Support two way intercom, support infrared night vision, distance up to 10m/11yd, can realize intelligent linkage with other products that support for TUYA. Visiting guests can make video voice calls and a short video recording, the host can know the incoming without oprning the door. 7Adopt powerful, highperformance programmable media Hi3518E, builtin ARM926 at Max.440MHz and highspeed video coprocessor. Support automatic white balance, automatic gain control, and automatic backlight compensation. 8With HiSilicon liteos lowpower solution, IR turns on the night vision function, infrared and ICR are automatically detected; IR turns off the night vision function and disables the infrared normally off, ICR is fixed in the day vision mode.