This Production tool

It is on your hand
It is is a power
It can do almost everything you want
It is the key that unlock you
It gives you liberty to act and to lead
It is the device your are using
Now for reading this
It is a production tool
Rich persons and brands used to have the production tool in the past but today this tool is on the hand of everyone who have at least a smartphone.
If it is a computer I mean a desktop your power is increased.