✅ High definition clear video with 120° viewing angle, display the details in front of your door,reliable and practical ✅ WIFI connection, no wire needs, achieve a two way intercoms between the doorbell and mobile phone.Real-time mobile phone, support two-way calls, photos, recording, caring for your family makes you more secure ✅ Built in 800MAH high-capacity battery , combined with low-power design, the endurance capacity is greatly improved, saying goodbye to frequent battery replacement ✅ Equipped infrared night vision, automatically open at night ✅ The doorbell can be controlled by APP, automatical work model, intelligent and portable.Portable in size and weight, convenient to install and remove (Support 2.4G WIFI,NOT support 5G WIFI)