I have been using a Samsung Galaxy S7 (http://www.gsmarena.com/samsung_galaxy_s7-7821.php). My computer is a Dell PptiPlex-7040. (http://www.dell.com/en-us/work/shop/productdetails/optiplex-7040-desktop).
Will computer emit more power (Voltage or Amperage) through its line out (Usually designed in green color) compared to the phone?
Is it safe to plug above-mentioned earphone (with a 3.5mm jack) to the computer? Will that damage the earphone/ headset