YCZ White Wireless Waterproof Remote Reception Dull Polish Doorbell Operating at over 500-feet Range with Over 50 Chimes, No Batteries Required for Receiver

It works perfect for me.

A good product and excellent service!

Wow I can only start with wow!! This wireless doorbell security button is amazing and loud. A lot of power packed in to this item. The instructions are simple and barely needed. This comes in a small brown box with easy to read instructions. There are two parts. The door bell and the plug in alarm noisy box. Instructions do say to open up the transmitter and install the battery but the battery is already in it and you only have to pull the tab to activate the battery. The transmitter can be put on the wall with the two little screws that you can put through but that was too hard because I didn’t want to take the insides out or you can install by using the double backed tape. But honestly what I am using it for is an alarm. I have the transmitter on the night stand and the door bell is plugged in by the front door. I spend a lot of time by myself and this will make plenty of noise if I hear someone coming in. Better yet this could be taken on vacation and if you end up staying in some hotel room that doesn’t seem so safe use this – one little noise at that door and you can click – the door bell goes off. That would make anyone wonder what in the heck and move the other direction.So the noise end gets plugged in the wall and the little piece if the transmitter. QualityI received this as a sample and truly think this is a quality item. This was sent to me in exchange of my honest review.