【Upgraded System】After checking all the complaints about the video intercom set, our engineer has upgraded the system. It is possible that the product cannot connect to the Tuya APP due to system compatibility issues. Our engineers suggest that if you cannot connect the Tuya APP, you can try to use the APP to connect. Because the functions of the two systems are the same, sometimes the connection speed of the APP will be faster. 【IR Night Version & Waterproof Doorbell】Equipped with Equipped with a light sensor and IR LED lens, 1080 HD camera, the durable doorbell can automatically turn on the IR LED at night to provide clear images. Up to 2 doorbells 2 cameras can be connected with 4 indoor monitors. Making your life safer and more convenient. 【Easy to Install & Wifi Connection】Surface mounting is convenient and easy, the stability of the connection provides a stable signal and clear vision for home security. NOTE:Wifi video intercom system doesn't mean it's wireless and no cable