I am hearing impaired and could never hear the doorbell on the required bells on our standard apartment doors. I researched the reviews of this product and similar ones on Ebay.com and decided on the Sado Tech Model C

This is such a fun tool since you can carry the buzzer around the room. Easy 1 minute install to just plug in and go! Batteries needed.

I bought this to use with grandson . His room is in my basement . If I hollered down to him most of the time he didn’t hear me . I am partially disabled so sometimes to hard to go up and down stairs so I got this doorbell , plugged it in his rooms and I can now stand at top of stairs , push button on doorbell and he appears at bottom of steps 😊 I love it !

We’ve owned a pair for two years worked great. Powerwashed house by professional this year. Didn’t think to take in in. Great product

Use it in my classroom. The helper kid gets to press the button when it's time to clean up or line up, etc. Has been so easy to use.

I feel like a hero. My elderly neighbor’s doorbell quit working. I ordered this and after a 1 minute installation, she had a new, perfectly functioning doorbell. I love that it’s low tech. It won’t need resetting every time the power goes out cause it’s not electric. True it doesn’t have a camera and many bells and whistles that wifi doorbells have, but it makes up for that by requiring no updates and maintenance and low price.

This little doorbell is great and has good tones and volume control.perfect fo large or small house or apartment The doorbell may need to be reprogrammed frequently if battery power is low.

My husband got some new head sets but wanted to be sure he could still hear me. We had talked about getting some kind of noise maker but also something that was a visual signal. I found these cute little door bells. He set it up in his game room and I usually call him in the morning. He sees the right light up. I got this in his favorite color lime green. I had surgery and can't couldn't call out while I was recovering. These things were great. They come with mostly a bunch of variants of "Ding

I absolutely love this product! It has done wonders for helping with classroom management. I love that you have different options for different sounds. Excellent product!

The doorbell was working great at the beginning of the school year. I used it as an attention grabber and it worked flawlessly, until 3 months in. Now, it only rings once when pressed and then won't respond to the clicker. Very unreliable if intended for classroom attention grabber.

With this wireless doorbell, the state of the technology has improved to the point where there is no comparison between this doorbell and earlier versions of wireless doorbells available from the likes of Heath Zenith or Radio Shack. Where the earlier models of wireless doorbells had limited range and had difficulty operating when walls, metal siding, doors or floors were in the way, this doorbell makes all of those obstacles a non-issue. On top of that, there is no battery needed for the…

Works as described and better. Bought 6 of these for apartments in our reinforced concrete buildings. No problem with signal. Closest unit is within 50 feet range, and furthest unit is at about 400 feet distance from the push buttons. All untits work well. Don't know about life-span of batteries, but will update review in the future. These things saved me a ton of money by avoiding hard wired installation costs. I spent roughly $ 120 for these 6 units and installed them myself. (Not very…