What is the difference between inserting a camera card and not inserting it?

Some wireless monitoring cameras of the monitor can be used simply by plugging in the power supply and networking, and downloading the software with the mobile phone. If there is no memory card, you must connect the hard disk to store it and watch it with the monitor. If you have a network, you can also connect your mobile phone for remote monitoring.

The memory card is used to store the surveillance video. According to the different capacity and definition of the memory card, it can store the monitoring content of different duration, which can be used for inquiring and watching the monitoring content afterwards. If you don't have a memory card, you can only watch it in real time, and you can't review the previous videos.