'You can't do better': Amazon shoppers can't get enough of this $20 doorbell

We're not sure when we became adults, but it must have been around the time our paychecks were spent less on frivolous purchases and nights out, and more on things like car insurance, showerheads and, yes, doorbells.

One thing we learned in adulthood is that not all home essentials are created equal. Particularly, when it comes to the SadoTech Model C Wireless Doorbell, you can't do better. Amazon's best-selling doorbell (yes, they even sell doorbells on Amazon!) reigns supreme with nearly 7,000 positive reviews. And at only $20, it's clear to see why.

Shop: SadoTech Model C Wireless Doorbell, $19.99

The remote transmitter of the product offers an operating range of over 500 feet, is waterproof and offers add-ons like door sensors and motion sensors. Plus, it's pretty easy to install given its wireless design. Customers can choose from a variety of colors, but the model's simple base works with any home design.

"For the price you can't do better. I still get a little thrill whenever someone rings it (I'm sure the thrill will fade when I'm sick of visitors)," wrote one Amazon reviewer.

Said another: "The pizza man, and any guests I have, even my husband can't resist ringing the doorbell. The receiver works far away from the door. We have it in our bedroom and when the bell gets pushed it definitely rings. I love it! ETA: It’s been over a year, and the doorbell is still going strong. I haven’t had to replace the battery or the sticky backing that I used to attach it to my screen door."

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