For whatever reason, the previous owners of my house had disconnected the doorbell and removed the wires. So I needed to get a wireless camera for my house. After doing a lot of research online, I eventually came across the conico doorbell. Now it is not a popular brand for doorbell cameras, but don't let that change your mind. You get all of the same features of the popular cameras without the popular camera price. I installed the camera about a month ago and it has worked very well. The motion sensor pick us, the mail person, and just about anyone who walks in front of it up on camera every time. It could get a little obnoxious if you live on busy streets, but the sensitivity is adjustable. Plus the wireless chime works very well. I plugged the chime into one of the USB ports on my television and it works just fine. The app is fairly user friendly and the battery life seems very good. It's at 64% battery currently after a month of use, although I probably didn't left it fully charge before I installed it. The camera is usable with existing doorbells as well with wiring ports to connect to existing wiring. I didn't use it but I just wanted to mention it to those who do have an existing doorbell.