AVANTEK Wireless Door Bell, CW-21 Mini Waterproof Wireless Doorbell Operating at Over 1000 Feet, 2 Remote Buttons Can Have Different Tones, 52 Melodies, CD Quality Sound and LED Flash

Incredible sound in terms of quality and decibel. The highest volume can probably be heard from the moon, so if you're hard of hearing or work in a barn a mile away, you'll STILL hear this doorbell on the highest setting. I'm being hyperbolic but only 90%.So many songs and alerts to choose from, it's daunting but fun. Every time I thought I had chosen one I'd click a few more just to hear a few more options then I'd have a new favorite. Some of the sounds are hilariously distinct and something I'd never actually want to use as a doorbell but I'm also half inspired to use the ridiculous ones simply for that reason.Easy to put into place, easy to figure out, aesthetically pleasing, and did I mention it's loud enough to be heard during a demolition derby? It probably is.I got two doorbells so I'm splitting my sounds up - one normal doorbell with a pretty song (I'll probably go with Fur Elise) at one of the lower volumes and then a secret doorbell near the real one but out of sight a bit for people I KNOW and LIKE to ring, that way I'll always know whether it's someone I want to see or someone I wasn't expecting. The friend-doorbell sends a rooster crow sound through the whole neighborhood when it goes off. I laugh everytime.

I used this to replace an older wireless doorbell. Main reasons for replacing the older unit were that it was not really loud enough, and had only one chime unit. The new one I ordered came with two chime units.I plugged in one of the chime units high on a balconyl above some picture frames, and followed the instructions to enable the battery on the doorbell button. When I pressed the button, I immediately heard the traditional "ding-dong" sound from the chime at a perfect volume level. I may experiment with other sounds, but this is the one I am used to. Later I moved this receiver to a Bluetti EP500 in the kitchen which keeps my refrigerator running during power outages (in the picture, the chime is hidden behind an orange extension cord).I then plugged in the second chime in the basement, where it is hard to hear the first one. It also responded to the doorbell without needing any further adjustment.The only slight inconvenience was that button did not have pre-drilled holes for mounting, and I preferred to mount it with screws. But that was easily solved with an electric drill. Although that could be a drawback, I don't consider it serious enough to affect the overall rating since an adhesive mounting is also provided.To enable the doorbell to work during a power outage, I plugged one of the receivers into a Bluetti EP500 which also powers my refrigerator. In the picture, it is partly hidden behind an orange extension cord.

Good price. Easy to install. Get the set up with 2 bells. One for the ft. Of the house and one for the back. You can set the volume low and not freak out when they ring. Really.

These doorbells work well and are really easy to set up (the hardest part is picking which chime to use). There are a ton of options, each doorbell can be set to a different chime, and the volume gets loud enough to hear from several rooms away if you need it to.I ordered this specific set because I have a large house with a front and back door that are both commonly used. The biggest benefit to these is the ability to set them each to a different sound. Now, when I hear the chimes, I know exactly which door to run to. My house didn't come wired for bells so I knew wireless was the easiest option and these were some of the least visually obnoxious that I could find. Many of the doorbells that I saw while shopping appear designed for alien spaceships with lights and weird shapes. These are just noticeable enough that people realize you have a doorbell.I really wish that AVANTEK would offer a set of two remotes with a battery operated receiver. I was torn, when ordering, between this set or just getting two battery operated single remote and receiver sets. I went with this one as it was the more economical option, but I’ve regretted it. The issue that I have run into with this set is that having it plugged in all the time means that it gets in the way. I wish I had the option to put the receiver somewhere truly out of the way. Additionally, the chimes aren’t always remembered. When the receiver was unplugged to move it from one outlet to another after initial programming, it forgot the chimes that were programmed for both doorbells. Although, later, the receiver was bumped and knocked out of the outlet and when plugged back in, it still remembered the chimes. A final time, the power went out for over an hour and when it came back on, the chimes were still remembered. So it seems to be fairly hit or miss. Another consideration is that when the power goes out, your doorbell won’t work. While this is true of wired doorbells too, the battery powered options don’t have this concern. If you live in an area where you have common power outages you probably want to consider looking elsewhere if you plan on having visitors during storms.One final note, is that after having these up for over a month, one of the remotes has begun to yellow slightly. This particular remote gets full sun for about half of the day and has been rained on an awful lot. I’m not too upset about it considering the conditions that it sits in, but it’s something to keep in mind. The other remote, which is placed on a door that’s covered by a roof, hasn’t yellowed at all.Overall, I would recommend this wireless doorbell set as a great, affordable option that doesn’t draw too much attention to itself. If you’re not on a strict budget or if you live in a home with limited outlets, I would recommend spending a little more for the battery powered option.

Loud and works great

I work for the schools and I been installing this doorbell's on several sites, they are expose to extreme weather and so far the most I have done is replacing the batteries, teacher's like the doorbell and the chimes that it comes with it. Very easy to install, love the product!

Perfect for what I needed. Easy set up and ready to use.

This set works perfectly for the front and back door of the garage. We did different tunes (so many to choose from, we had a hard time deciding), so we know which door to go to, and people love it. It's easy to change the tunes and just plugs into the wall. They are wireless and we just set it to our internet. I'm in a raised ranch and plugged it in next to the front door. We were concerned if it would work at the back door since Ring Central won't work with the distance, but there are no issues with this. It's durable, and the size was a perfect fit when replacing the original doorbells.