Reebok is attempting to reinvent the way you listen to music as they have collaborated with Spotify for this  FitList application. It directly connects with the Reebok FitBox viewable above which is actually a mini speaker in the form of a brief case. The FitBox actually lights up in reaction to the beats you put through it which it calculates the BPM automatically. You can take a detailed look at the Reebok Fitbox in the gallery above along with the limited edition Flex sneakers it comes with. Only 100 have been made and are on display now at the Reebok Fit Hub store on 5th Avenue New York.