This controller is great for navigation and burning through videos. It feels great in your hand and the buttons and touch pad work great. It doesn't work with all the games, so if you're going to buy games, you better makes sure it's compatible first. Takes (2) - AAA batteries and is made specifically for Samsung compatible phones and the gear vr headset. All in all, it's a pretty neat little motion controller, I'll give it 4 stars. Seems like it would be a better fit at $19.99 though. But if you can afford it for what it is...go for it, I did.