Features:-No need to use WiFi signal, which makes it safer and prevents potential hacker attacks. Thanks to the advanced 2.4G dedicated protocol, you can use it with confidence.-Equipped with a 4.3-inch IPS screen, it provides a clear and visible panoramic view from any angle. Built-in infrared night vision function, you can always see it, whether it is day or night.-When someone rings the doorbell, long press the talk button to initiate a call through the intercom. Normally, the intercom is in standby mode.-It supports up to 128GB TF card (not included). When the card is inserted, it will automatically save photos and record videos.-Cordless installation is adopted, so it can be used normally without interference even in power outage.Specifications:Colour: .