To record with a spy camera without a limit, you must have a continuous power supply, as we have already mentioned. All you need is a battery charger and a USB cable connected to the spy camera. Then you only need to connect the camera to a power outlet constantly.
Secondly, you need to have a large storage capacity. You can expand the storage memory of a camera with a Micro SD card. This will not be enough because, at some point, the memory storage capacity will run out.
This limitation can be avoided with a spy camera that incorporates a loop recording function. This function reuses the storage occupied to store other videos. This is a rewriting of the data or files. Recording videos in this manner is done automatically.
The disadvantage of this is that older videos that have been stored are lost. The user will be able to count on a spy camera that can record videos without a time limit.