Men produce an unending supply of sperm, but most of them have never been able to see their swimmers up close and personal -- until now.

YO is a new at-home device that let’s you essentially stream your semen. It works by turning your phone into a microscope, which along with letting you see your sperm can almost instantly tell you how it looks.

The kit, which will be for sale starting Tuesday and sells for $50, is different from other home tests on the market because it can measure sperm motility rather than just giving you a count. That means you know whether your sperm of a good quality, which is what really matters when it comes to fertility.

It’s a test that is easily performed at a doctor’s office -- though it can be expensive and often isn’t covered by insurance -- but the appeal for many will be the option to give their "sample" at home. The whole process is actually pretty painless, and your phone won’t even get covered in splooge.

Using the disposable equipment provided (they give you enough for two tests), you collect your sample and then drop it onto a slide. You then insert that into the YO clip, which slides over the top of your phone, and use the corresponding app to start the test.

In two to three minutes, you’ll get the results, along with a mesmerizing video of your sperm. As an added bonus, you can zoom in on your little fellows and inspect them all you like. If you ever need to revisit them, your results are stored in YO's database (you can delete them whenever you'd like).

Just remember that however proud you are of your sample, it's not the kind of video your Instagram followers of Facebook friends probably want to see.

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