TL;DRRazer has launched a new mobile game controller called the Razer Prio.It’s sleek and folds down to the size of a credit card so it can easily be carried around.It comes with a full controller layout, and Razer says it’s engineered to reduce joystick drift.There’s no dearth of mobile game controllers on the market, including Razer’s own offerings. So why did the company launch yet another mobile controller? Well, because it addresses a couple of really important pain points that most mobile gamers associate with game controllers.Razer showed off its new Prio mobile gaming controller in a YouTube video. At first glance, it might look relatively similar to most other controllers, but it’s not. For one, the Prio looks sleek when attached to a smartphone.