Safeguard Supply Doorbell Extender EX1000S- Doorbell Extender to Use with Existing Wired Doorbell - Convert Your Wired Doorbell into a Wireless Door Bell - 1000' 95dB Doorbell Extender Wireless Kit

I was not sure about being not adjustable, but the sound was just right to hear throughout the house but not too loud. It does have many different sounds, some louder some lower. Easy to install. Highly recomend.

Easy to hook up. The sound and the light cannot be missed. I'm using it in an upstairs bedroom because my hearing is declining and I sometimes cannot hear the doorbell. So I plugged it into an outlet in my bedroom so I will never miss the doorbell ring again. Quite a large number of doorbell sounds from which to choose. Without double checking right now, I think that there is no volume setting, there is only one default volume. So that might be considered a negative. But the default sound level I think meets a happy middle ground of not too soft and not too loud. A bit expensive. This extension cost a lot more than getting an actual doorbell. I guess because of the Wi-Fi connection.

I don't work much with electrical points so the instructions were confusing. Pairing the extender with plug in receiver instructions are easy and work. But connecting the black, white and red wires to existing doorbell was confusing. I ended up with different combinations till the one that worked.Strobe light blinks for about 10 seconds. I have no complaints with doorbell ring options. Barking dogs, chicken, music and regular ding dong along with more options. You cannot turn down the doorbell volume but that's the whole purpose of a doorbell. I would like to hear the doorbell if I was in shower or vacuuming. Doorbell is loud enough which I like as of now.

I bought it with two receivers. I use one upstairs in a bedroom and one on the patio outside. It was very simple to install. The wiring to your existing bell system is simple and very obvious. Anyone who can operate a screwdriver can do it.

This is the solution I needed to be able to hear my doorbell on another floor. The transmitter is small and simple to install, but it won’t fit inside your existing chime box. It will either adhere to the outside of the box or attach separately to the wall. I’m pleased with the setup and performance.