Pros
It is quite small, lightweight and very easy to install.
You can control it remotely using your smartphone via a Bluetooth connection which is much safer.
It allows a large number of validated users access making it ideal for both offices and residential apartments.
It is very energy efficient as it consumes very little power at a time.
Cons
It uses DC voltage so it might not be of great help to you if your garage uses AC current voltage.
It can open only one garage door at a time.
Types of Hearing Aids
Difference Between a Hearing Aid and a Hearing Amplifier