Review on Motion Sensor Alarm - ELEPOWSTAR Wireless Motion Detection Doorbell with 58 Chimes, 5 Volume Levels & LED Flash by Mike Groover

Works well so far. A few notes. It comes in a plain brown box with no external advertising. 2. To change the mode (as shown in my second photo) you need to unscrew both screws from the back of the sensor. Changing the ringtone isn't described very well in the instructions. I had to press and hold the select button down for my choice to stick. We went through an annoyingly loud ding-dong. I think it was a ghostly sound for so long. Worse, it would only be that he would have to choose polka music every time. The sensor is very sensitive! That's fine if you're not trying to choose your tone. Overall I was satisfied with the product. Somewhere in China there is a man who thought what would be fun to give you a micro flathead screwdriver when you need a Phillips screwdriver for real micro screws. If you tilt it properly, you can use the included screwdriver. Also useful for repairing glasses!