1、Phone Real Time Monitoring: Support phone real time monitoring, even when you are out of the house, at any time and anywhere to actively wake up monitoring, first hand grasp of the situation, so you do not pass any picture. 2、WiFi Connection: WiFi wireless connection, 24 hour automatic abnormal sensing and catch, video (need to be paired with storage devices), while pushing the abnormal message to the phone, always remind, loaded batteries, connected to WIFI, no need to connect, signal stability. 3、Large Wide Angle Lens: The use of 166 degrees large wide angle lens twice the field of view, to avoid blind spots, dead ends, intelligent infrared recognition, when the light is not enough will automatically switch to night vision mode, so that you can see any abnormalities outside the door at night, outside the door, courtyard, corridors, aisles and other corners of the picture at a glance, guardianship of the whole family safety. 4、Two Way Voice: Support two way voice calls, HD two way voice calls, so that communication no distance, built with premium shell, unique design, easy to install, a key start has never been so simple. 5、Phone APP Binding: Through the WIFI wireless network, APP open notification function, when there are visitors or other abnormalities, it take pictures and notify the APP client at any time, you can check the situation at any time, recorded full automatic cycle overwriting the early files, no need to manually delete the work outside can also be aware of the situation in front of the home. 1 x Host(Battery Not Included)1 x Instruction Manual5 x Expansion Plug5 x Self Tapping Screw3 x Back Cover Screw1 x Hex Wrench1 x Fixed Adhesive Sticker Item Type: Smart Wireless Video DoorbellMaterial: ABSGross Weight: 230g / 8.1ozResolution: 1080PWIFI: 2.4G wifi 802.11b, g, n (5G not supported)Storage Information: support 8-64G small memory C10 high speed card (not included)Waterproof Rating: IP54Battery Information: 18650 battery x 2 (pointed, convex models) (shipped without battery)