If you feel too lazy to install a doorbell, get this one. Just plug it in and attach the wireless doorbell buttons where you need them. The doorbell buttons are battery operated and can be installed anywhere within 150 feet of the chime.
You can assign a different tone for each button, so you know which door the pizza delivery guy’s at.
Sometimes wireless doorbells get weird around your neighbors’ wireless systems. This set is self-programming to avoid that interference.