Peacekeeper

My phone is a peacekeeper
I can rest, feel joy and hear the world
It is my private and public place
It knows and represents my emotion
My phone looks like a rectangular prism
I can feel metal when I touch my phone
I can tap, click, knock, flap and clip
It makes sound to remind me
It is good as having a gold
It is where I can lie upon
It cheers me up whenever
My phone is a peacekeeper