Review on SadoTech Waterproof Wireless Doorbell: 1000 Ft Range, LED Flash, Battery Operated - Perfect For Home Use by Joshua Jemison

Easy to install once I figured out how to remove the back cover of the transmitter (the push button module). I thought the little screw driver that comes with it is for removing the back cover. I ended up using my larger screw driver to remove the cover. The little screw driver is of no use for the installation. Maybe it is for removing the circuit board when time to replace the battery.The sound is loud enough at the highest volume. It is easy to lower the volume and to select the chime you like.The 3 stars is mostly on the push button module. To trigger a door bell, the button needs to be pressed hard for it to make contact. After installation I thought the push button module looks cheap to me.I just installed it today. Can't say if visitors will realize to press the button hard enough for it to work.