There are several types of headphones in the free IT vending machines: http://fortune.com/2011/07/06/facebooks-vending-machines-a-coke-or-a-keyboard/ http://fo

There are several types of headphones in the free IT vending machines: http://fortune.com/2011/07/06/facebooks-vending-machines-a-coke-or-a-keyboard/ http://fortune.com/2011/07/06/facebooks-vending-machines-a-c... https://www.youtube.com/watch?v=YAjChZ3gyps https://www.youtube.com/watch?v=YAjChZ3gyps