Audio cable solution (2 males to 1 female)

[maybethisnamewillwork]

I need two computers to output audio to one device (headphones).
Maybe not at the same time, but so that I don't always need to swap the cable with machines.

I found this cable which has two 3.5mm male jacks going to one female, is this all I need  ｢(ﾟ<ﾟ)ﾞ??
 

[matexoza]

im not sure if that will work or not but if using 2 systems maybe try a kvm switch with audio support something like this

 

http://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=tk-209k&_sacat=0

 

i use one of these and it does the job