[Trisquel-users] (Not Trisquel-related. Free software related) Free earphones and headphones?

[svenerik_vn]

In the same style as my other post about monitors I wonder if earphones  
and/or headphones fall victim for proprietary software or if they are such  
"simple" pieces of technology that proprietary software is not an issue in  
the world of headphones?

While I'm at it I'm also wondering about this in regards to other "simple"  
devices as mouses, keyboards etc etc :)