【Two-way intercom】: WIFI connection, no need for wire, realize two-way intercom between the doorbell and the mobile phone. Real-time mobile phone, support two-way calls, photos, recording, caring for your family makes you safer. 【100° wide-angle lens】: High-definition clear video with 100° viewing angle, view the details in front of your door, reliable and practical. 【Large-capacity battery and easy installation】: Disassembly-free charging cycle, built-in 800MAH high-capacity lithium-ion battery, charging time 1.5 hours. The doorbell can be controlled by APP, intelligent and portable. Portable in size and weight, convenient to install and remove 【Night vision function】: Equipped with infrared night vision, automatic opening at night. Wireless connection, ultra-low power consumption, can support multiple accounts to watch online at the same time. 【Uses】: Guests can make video and voice calls. The host can realize the visitors' information without opening the door. Doorbell Features: