Just open it in a browser tab and be sure to set your number of virtual colleagues at the bottom right and then click on play at bottom left. Then leave it playing in the background if you really miss the office. Of course for others they probably miss working in a coffee shop and there are already similar mobile apps like that.
One day many will want to play sounds of home when they are back in their office cubicles or those unproductive open-plan offices 
See This website replicates the sounds of being in the office again
#technology #audio #workfromhome
The whirring air-conditioning system is surprisingly comforting.