Review on Wireless Doorbell For Homes, Apartments, Businesses, And Classrooms - Easy-To-Use With 2 Door Ringers & 1 Plug-In Chime Receiver - Battery Operated And LED Flash - SadoTech (White) by Jeremy Kakaruk

This door chime works excellently and I'm glad I invested.There is an outside perimeter gate around my house were I installed one, and I installed the other right outside the front door. We had a need for a doorbell after we bought our house and re-did some electrical; we ended up cutting the old style doorbell wires and kept missing deliveries because the while the old doorbells were still affixed to the house, they weren't wired and thus we couldn't hear anything when the mail came, lol.Installation was a breeze - all the hardware was included with the product and we already had power tools at home to make the job super simple. Our old, pre-existing doorbells were anchor+screw mounted into the stucco of our house, so I just undid the fasteners, clipped the buttons+wires off, and pulled out the old plastic anchors.All you do then is just drill one hole in the top, and one hole in the bottom of the back side of the door bell backing [there's like a circular shape of plastic acting as a bull's eye kinda, making it pretty obvious where you need to drill the holes (I used a 1/16" drill bit and it was fine) - I imagine you could screw the fasteners without drilling first but I didn't want to take a chance cracking the plastic], hammer in the new anchors, and screw in the fasteners through the holes, into the anchors, and onto the side of your house.Pop in the included battery, put the cover thing back on and you should be set. We had some rainproof clear silicone in the house, so for good measure I used that to seal all around the unit against the wall so no water could get in behind.Depending on how old and what style of doorbell you previously had, some voids might show up around the bottom or sides. Lucky for us we already had some tile grout that also happened to match the outside color of our stucco, so I used that to fill in the gaps. Also, I found just one screw at the top is enough to hold the button in place on your wall. [I had to do this for one of the two buttons because the old button kind of made a long-ish hole and I didn't want to fill it in, and then wait for it to harden/ dry and then drill into it later.]As for the part you plug into the wall that makes the music, it really was just plug & play. I like how there's a birthday tune, and a lot of holiday-themed ones, among some other quaint etudes.The button only lights up when you push it, so you don't have to worry about the battery draining constantly. The part that plays music lights up when the song is going.So far, so good. These buttons have gone through quick torrential downpours and searing Southern California heat, and have stood up excellently. No signs of color fade, melting, or any decreased performance. Yay!