There was a rough start to get this working (with an Android tablet).1) It does require that you download the "Wifiview" free software to use with this, and either charge it well or keep it plugged in. There is a sliding on-and-off switch on the main box.2) Install the software, and then go to your Android device settings. Select "Wifi," and choose this device. The manual that comes with this provides the device name to look for, the password, and a friendly warning not to change the password as once forgotten it could not be retrieved.3) Open the software, and go into the settings. Here you can choose the quality level for your pictures. I have not needed to do anything at all with the text entry boxes. I have had to restart the software, the endoscope, and the WiFi connection sometimes, only on start-up, and only sometimes (fingers crossed).4) Back on the main screen, you have the choice to take video, take photos, or view the video & photos created with this device. They save in their own folder and do not mix with other media.5) If you weren't able to get this far or just see a black screen, double-check check the power switch, and try adjusting the brightness of the LED lights. Those are controlled with a dial on the WiFi box, next to the power switch. (If that doesn't work, you have 3 things to try re-starting, as mentioned above).6) When you begin recording video, check the top of the screen for a digital readout (red font) of the time that you have been rolling. It appears on the screen, verifies that you are recording and helps you control clip length. The read-out has not appeared in my recorded videos. There are few settings in the software, so I do not think that you have that option. If desired, use other software to add back in, later.7) While you are recording video, you are able to also use the camera icon to snap still pictures, without interrupting your recording. Nice!8) There is a nice stiffness to this endoscope, so often we have not needed any other support. To view straight up into the ceiling, we used a rubber band to secure it to a long handle; it isn't going to stay straight and stiff for several feet in the air. We have also used a wire hanger to guide it for longer horizontal expiration, such as ductwork. If you require inspecting a longer length of this sort of passageway, you might be able to attach it to twine that you have already run through and then pull it along. The one caution is that the WiFi box would have to make it through the path. The length of this endoscope is generous enough that I do not anticipate giving that approach a try. After all, you cannot unsee what you have seen, so be careful where you look, heh.9) The length of the focal point is not adjustable. This just meant paying attention to the screen to see what we were getting, and adjusting the distance from what we wished to see clearly. The task involved some tight spaces, such as in and around electrical outlet boxes (be safe), and we were still able to adjust with ease and an easy-going attitude.10) There are indicator lights for power & WiFi. They are about as small as lights off this sort can really go, but they are there!11) Someone with low vision may be able to use this with some initial assistance in figuring it out. There is no contrast to the "on/off" lettering, though they are raised and with an attentive touch you can tell which is which. The charging connection is flush to the box, though the seam is thoughtfully designed such that you can feel the right spot to connect it even if it is positioned out of view. The dial for the adjustment to the light brightness is unmarked; you just see what happens. Labels could be added, if you like. This endoscope is bright enough, out of the box, that with a good-sized screen and using full brightness, some loss of vision can be countered and allow use of this product. At times we chose to supplement the lighting to look further down the path ahead, or to highlight texture. The additional light (bright flashlights) worked well with this product & didn't wash out the view.12) There is auditory feedback for the camera shots, that sound like a camera shutter. This is the only way that you know that your attempt at a photo registered. I find the auditory feedback to be loud. No stealth camera, here, LOL! Seriously, I have had the luxury of guarding my hearing well throughout life; if your years were spent in ways that affected your hearing, you may find this product frustrating, as you would have to leave the screen to see the saved pictures to know whether one was taken. The auditory feedback is important. It's just good to know ahead of time.13) The software download will allow you to play your videos and view photos just by navigating to them and tapping what you'd like to see. To delete, hold your finger on the item chosen to go, and a dialogue box will open to verify that it is your intention to delete. It is so easy, there are no extra unnecessary steps beyond that & I really like that vs multi-step requirements.14) To rename your photos or videos, or to organize them into folders, it seems that you must use other utilities. However, I am working on an Android tablet that is not quite as smart as salespeople would have me believe. If others can get a little more functionality than I can, it wouldn't be the first time. There are no indications that I can find that would suggest those features.15) Remember the little phrase above, that you can't unsee what you've seen? Right! The ground shook, there were screams, and loud organ chords and strobe light as we found..... Well.... OK, maybe just darkness fell over the land, and maybe that had something to do with the 2017 solar eclipse, and it was still just the chill to go along with the mystery object that will remain exactly where it is in the wall because nobody I care about is allowed to touch... THAT. That thing. Proceed carefully friend, and make sure that you want to know. ;)I gave this five stars while acknowledging what it does well, and the limits as I see them. Most of those little it's have to do with the software, and then I'll acknowledge that I can appreciate a functional no-frills approach over redundant or unnecessary bulk that takes up precious memory space. Another consideration is the affordability of this product. The price is absolutely great for this (and I paid full price). It has already paid for itself many times over, as we had quotes of $350 to $600 to check out what we just did by ourselves, with this. Other than that, it may be helpful to have an extra set of hands to help, especially for awkward areas. Dropping your phone or tablet could wipe out the DIY savings rather quickly. Oh, and there is nightmare potential. That simply depends on what you discover in YOUR house. :) If you really want to know, this can help you to get there.If this has helped you in your shopping challenge and/or brightened your day, please click the "helpful" button. Much appreciated, and happy shopping!