For a modest price it provides a clear picture of what is going on inside your cylinders.

This is a very cool gadget and priced for the casual observer. You will find jobs to do with it you never thought about before. Some very good features that make it versatile. Mine is connected to a Win10 laptop and it on took a few minutes to set up. I tried to connect it to an Android tablet running 5 and went to the PlayStore for software. After downloading and experimenting with over 20 different choices, I could not get it to work. Bummer, but the Windows machine is all I need. It comes in a metal, foam-lined metal case to protect it from damage. It also comes with five of those little blue sleeves and a tool to install them. With minimal care, the sleeves last a long time, despite some of the reviews. BEWARE, if you show this incredible little tool to anyone in your shop or someone who sees how useful it could be, they may be tempted to borrow it and forget to return it. Buy one. You will never regret it.

Its a good little boroscope, unfortunately I cant get it to work on any mobile device. Tried Samsung A5, S5 and two android tablets, none worked with any of the apps on Google play. I could only get it to work on my laptop with the program provided on the manufacturers website. The picture quality is good and its a light small tool. The condom that protects the bending apparatus is easily torn, had to replace it with the provided applicator, DO NOT push the aluminum tube more than a 1/2 on the tip or else it will get stuck. I had to use a little torch to heat it up and remove it. This would have gotten 5 stars if the manufacturer had an app that worked with any of my devices.

Fantastic product with great resolution clearly able to see the condition of cylinders and valves. Also helpful for inspecting items/gears within an accessory gearbox.

The scope worked as expected. The picture of my cylinders and valves on the iPad are great.

Works great and easy to use. Nice touch adding the dimmer for the LED lights which does not show in the item description.

As Advertised. Works great inspecting aircraft cylinders

Excellent product. Very clear image when more than about 2 cm from subject.

Va-400 works well with lap top, but not so much with cell phone. I loaded 4 different soft wares that they recommended on my Samsung A50 phone and could get no picture. So I went to Geek Squad for help. We tried 5 different cell phones and only one of five was able to get a picture. I emailed Vividia and described the problem and after a week I have had no response.

Ive wanted one of these for years, finally broke down and bought it (after moving to a different state and not being able to borrow my buddies scope anymore!). He used to keep his in an open plastic box with another scope in his hangar, pretty rough conditions, so I knew this was a quality device. Well, my new one shows up in a classy metal case like a fine flute might come in. It has extra sleeves for the articulating head along with a tool to install them. There are also a few USB adapters thrown in. I also purchased the wi-fi adapter and it fits right in the case with the VA-400. The adapter lets me use my iPhone and it connected immediately. Ill actually use it with my iPad, but I havent tested it yet--I am not anticipating any issues. I was a bit disappointed to discover that they removed the locking head feature. If you dont know what this is then it wont matter to you. They put a work around on their website using cable clamps and Ill just use that. This model has an upgraded camera and LED illumination system along with metal disks between the vertebrae in the head--this is going to allow this to last a very long time. So, just a 5-star instrument that if you are doing any kind of serious engine work you do not want to be without. It is also great for peeking into other areas around the plane that arent easy to see into.