Turn Enhanced Vision (EV) on and the system will use its low-light sensor to accumulate light continuously through a series of short exposures.
The resulting image is also projected as the accumulation occurs, which means that once you start Enhanced Vision, not only will you see something, but the object will keep on improving with time. In the case of the eQuinox, you will see it on the screen of your smartphone. In the case of the eVscope 2, you will see it both in the eyepiece and on the screen of the smartphone.
Depending on observing conditions (light pollution, moon phase, weather, etc…) and the objects you are pointing at, it can take from a few seconds to several tens of seconds for you to start seeing the beautiful colors and shapes of galaxies and nebulae usually invisible directly through the eyepiece of a regular or even a high-end telescope.