The Amazon Fire TV Game Controller has just gone on sale for $39.99. This is only the third time Amazon’s official controller has ever gone on sale. The lowest it has ever been was $34.99, but it’s unlikely to go that low again anytime soon, considering how rarely it goes on sale to begin with. Amazon’s Fire TV Game Controller is compatible with all Fire TV and Fire TV Stick models, both 1st and 2nd generation devices. The only caveat is that the built-in headphone jack only works with the Fire TV 2, but all other features, including the Alexa voice mic, work with all Fire TV and Fire TV Stick models. While there are many game controllers that work with Fire TV devices, nothing beats the perfect compatibility you get with the official game controller from Amazon.