Have you ever lost something — luggage, your keys, a backpack — and thought, “Man, I can’t wait until a Jetsons-style future when I can immediately push a button to know where my belongings are, and track them with a small device until I find them again?”

Welcome to the here and now. Apple’s AirTags do exactly that, so it’s no wonder they’ve been a consistent best-seller here at HuffPost. Right now, you can get a four-pack for the lowest price they’ve been since Prime Day. As soon as the big sales event ended, they immediately shot up in price so if you’ve been waiting for another drop — today’s the day, so don’t delay! (BONUS: We also spotted AirTag holders discounted with an on-page coupon.👀)

People love these trusty little trackers because they’re super simple to use. Here’s how they work:

AirTags are simple and easy to set up and track with your Apple devices (the key ring holder is not included, but there are many options).AirTags are simple and easy to set up and track with your Apple devices (the key ring holder is not included, but there are many options).

Each AirTag can ping its own location, so when you attach it to one of your belongings, you can track that item via Apple’s Find My app, which is available in the cloud and on Apple devices like iPhones, laptops and more. Through Find My, you can even tell your AirTag to play a sound so it’s easier to find.

Every tag is completely encrypted for privacy, and even when it’s far away, it can anonymously and secretly use a network of Apple devices to send its location back to you. When you move away from an item like your keys, it can even send you a notice!

In addition to being water- and dust-resistant, AirTags have a wildly simple setup, and you can assign each one a name to keep your most valuable belongings sorted.

I learned about the power of AirTags after my car was stolen a few years ago and the thieves ripped out its GPS system.

I bought an AirTag to keep in the spare tire in my trunk as a backup — and it works!

I found it so useful, I bought another to place in checked luggage (you never know where your bag might end up). I also haven’t lost my car in a crowded parking lot since!

One Amazon reviewer, Rene, also reported that the AirTags helped them after being robbed. ”[These] saved me 5k + worth of tools. Placed these things inside my tools where they would be hidden from the eye and would need some work to get too just incase my tools were stolen,” they wrote.

“Well the day has came and I was able to track my tools to the robbers exact location, called the cops, retrieved all my tools back and got the scum bags arrested.”

AirTags have thousands of five-star reviews on Amazon, with an incredible 4.8-star rating — and what people seem to love most is their durability.

Rene also shared that their AirTags hold up to some unusual rigorous activity! “These tools are hard-working tools (generator and quick saw),” they noted. “They both have a lot of vibration and everyday use and the durability of these tags are holding up to the abuse.

“The durability is outstanding,” wrote another reviewer, who added, “With their simple setup, tracking precision, durability, elegant design, and intelligent features, they are an investment worth every penny. If you’re an Apple user who values the security of your belongings, AirTags are an unbeatable choice. I’m extremely satisfied with my purchase and can’t recommend them enough.”

Join the hordes of others who are taking advantage of a good Apple sale and grab a pack of four for the whole family or multiple valuable items. This price won’t last!