indefinite article - "If you own" or "If you own a" when talking about a product in an ad

Let's say there is a game console called Bumby that can be used to play every single game available.

1. 
   

   "If you own Bumby, you won't need another console."

   
   


2. 
   

   "If you own a Bumby, you won't need another console."

   
   

In an ad for Bumby, which would be the correct way to say it?