The Pokket Mixer is a portable device that allows easy EQ and mixing between two audio sources with standard 3.5mm jacks. It requires no external power, and does exactly what it’s advertised to do. Very cool!
CA: http://ncix.com/search/?categoryid=0&q=pokket+mixer
US: http://us.ncix.com/search/?categoryid=0&q=pokket+mixer