Hivernou Wireless Doorbell with 1 Push Button and 2 Plug-In Receivers Operating at over 600 feet Range with 48 Chimes and 6 Volume Levels & LED Flash,No Batteries Required

the package arrived ontime. Everything is pre-configured and plug and play. The door bells need to be plugged into any outlets. The push button can be tapped anywhere, no need battery or power line. This is amazing. There are more than 30 different tones. Each door bell units' tone can be independently set. Unfortunately, I didn't find any volume control. I give five stars because they are super easy to be setup and running.

No battery required. Awesome doorbell ever . This is the most clever doorbell I have looked at. It has two mounting options, a fun selection of sounds, and a loudness control. Perfect for an often used backdoor that does not have a built in door bell. The range is as good as advertised. I intend to buy another to use between my shop and house as a signalling device to tell me when to pick up the phone or come to dinner.

It really works on this self powered one. Battery free and easy set up, just right out of box. I have one plugged into the outlet downstairs and the other one upstairs. Perfect.

Fantastic yet simple doorbell. I love having 2 ringers that can be placed in any electrical outlet in the home. So easy to install. Goodbye wires and batteries!

This is so easy to install. Just plug in the two wall plug and stick the doorbell outside of your house. It works very well and it doesn't need any batteries which is why I bought this. Also, I like how it allows us to choose the ringtone which is super nice. Overall, will recommend this product!