Hi, I'm Rich Brown, senior editor for cnet.com. Today, we're gonna take a look at the editor's choice winning Mad Catz Cyborg R.A.T. 9. So, this right here is one of the most expensive gaming mice we've ever seen. It comes in at a 150 dollars. So, it's definitely for the more committed PC gamers out there. That's it. This is also one of the most customizable mice we've ever seen and it's also a great performer. We recommend it to anybody looking to spend a lot of money on an input device for game. So, the RAT 9 comes with a lot of features we expect on a high end gaming mice these. That's a 5600 dpi laser sensor. That means it's very fast, very accurate. This is a wireless mouse, but Mad Catz does sell wired version for a little less. Now, this button right here lets you move through various dpi settings you can make the most more less sensitive as you're playing. You can also use the included driver's software to customize the settings, so you can really tweak and feel the mouse to exactly how you would like it, if you flip it over, you can see it done. At middle here, there is a series of weights that come upon this post. You can actually unscrew. There's cuff here to take the weights off and set the weight of the mouse you want it. That's actually a nice little feature and it really helps improve the overall feel of the mouse. The top of the posts are actually doubled as an Allen wrench with slots to adjust various points in the mouse to really make it feel good in your hand. Now, the thumb side of the mouse, you can use the Allen wrench to move this piece here, either up and down or you can loosen it so that it comes out an angle. That gives you a better position for your thumb potentially and the 2 side buttons as well as red button here as the red button is actually we haven't seen before. The idea is that when you are playing a shooting game and you have a sniper rifle, so you wanna run around really quick, you get have the position, you wanna have the nice fast cursor control so you can see you can see where you're going, but then when you zoom in on some somebody, you might want a little bit better control. So, when you push that button, you lowers that dpi of the laser sensor a little bit and let's you get better beat on whoever you're to tract and we get to the pinky side of mouse, you assumed the there's another screw here, you can use the Allen wrench. and take this piece off and Mad Catz includes 2 other pinky pieces you can put in, of different textures and different sizes, so lets you customize that side of mouse as well. Mad Catz also includes a carrying box that you will put all the various pieces that you're not using outside. No for the last part of our customization, you see this wrist rest here. It's little tough on bottom, push it in and you can slide wrist piece right off. You get 2 other wrist piece options. To set up a little higher on this track, one sit is closer to flash. What's cool about this track is that you cannot only slide in new wrist pieces depending on the kind of feel you want there. You can also set them to be longer or shorter. So, if you got a bigger hands or smaller hands, you can adjust the wrist piece, so it fits perfectly. Now, running at the mouse, you get a lateral scroll button here. That's actually an awkward design. It's not the most natural feel of kind of like Logitech's version where the lateral scroll well built in to the main screw area tilting function but one thing we love about this mouse is actually it comes with batteries, so you can chard the second while you're using the other. Now come to the charging station, also access of USB receiver, pop the battery in there, and this will appear hold to cylinder that holds extra weight when you're not using. So there's a lot going with the RAT 9. It's one of he most customizable mice we've ever seen. It's got some features we've never seen before and it also has great performance. It really sort of justifies 150 dollar price tag, which is why given editor's choice award. So, I'm Rich Brown, this is the Mad Catz Cyborg R.A.T. 9 wireless gaming mouse.