Speak Recognition, Voice Recognition Module

Hello i was looking to do a Voice Recognition project. I was looking around online for some and only one i can come up with is this one

http://www.ebay.com/itm/Speak-Recognition-Voice-Recognition-Module-V3-M28-/351494186628?hash=item51d6afa684:g:tagAAOSwgQ9VyM3~

But i was wondering if anyone know where i can find a not so costly Module or shield to do a project like this? Can someone please help me out thank you.