Purchased for my son who is a mechanic & he needs to obviously needs to see inside engines whilst working on various parts amongst other things. It comes with a really long lead so you can view almost anything even if its very hidden. Today’s engines are so full of crammed in with bits and pieces that cause issues when working on them as the bolts can be dropped and lost on other parts or he just needs that extra ‘pair of eyes’..the magnetic head is brilliant to have as it easily picks up those nuts and bolts..so can see it being as useful as the magnetic telescopic wand and the hook attachment.. all Easily guided with the light... he’s been Using with a Ipad just to have a bigger screen to work with and although had initial teething with pairing (had to uninstall and reinstall app. use default password stuff as custom created issues), it’s been fine ever since. The quality of picture is perfect for his needs (closer to camera..the clearer the pic), auto adjust to the lighting etc makes things easy, also the app is easy to navigate..