Earlier this year, I reviewed the Corsair Ironclaw RGB, and just a few months later, the company released its wireless successor. The face-lifted version has more buttons and features Corsair's Slipstream technology. It's an enormously huge right-handed mouse clearly built for palm grippers, although grip style is a matter of personal preference, and it can be used differently, too. Its surface materials are the same as on the predecessor, which means it has a soft-touch matte top and rugged, heavily textured rubber side panels that provide a stable grip after even many hours of use.

Build quality is just fantastic. The Ironclaw is very well put together, as massive as a mouse can get. With no creaks, squeaks, or misalignments, everything is on point. When it comes to weight, this mouse clearly plays in a different league than most. At 133 grams, it's extremely heavy. Some people prefer heavier gaming mice, but a lighter mouse will put less strain on your wrists, especially if you're playing on a lower sensitivity.

Buttons are good on this mouse—the main ones are especially fantastic. They have next to no play or unnecessary travel, feel light and tactile, and use Omron switches rated for 50 million clicks. With similar characteristics, the side and CPI buttons are also pretty great. While the scroll wheel is medium-light in resistance, leaning towards the loose side, it still has a noticeable amount of tactility. As for the middle click, it's very stiff and hard to depress, which makes it really tiring to use excessively. Lastly, the profile switchers beneath the scroll wheel have a medium resistance and are a tad mushy, although still perfectly usable.

The sensor itself is great. It has proven to be fantastic before, but the implementation leaves a lot to be desired in this case as something interferes with the signal (I think it's the lighting, but am not sure) and the mouse drops polls. This happens both in wired and wireless modes. Please note that I couldn't really tell in-game, but the graphs clearly indicate some sort of error. A future firmware update could most probably fix it, and I hope Corsairs rolls one out soon.

A handful of companies have already shown how to get true 1 ms or even lower wireless response times with mice, and Corsair is not far off, but they're not exactly there yet. The Ironclaw RGB Wireless is about 1 ms slower than my Logitech G PRO Wireless, Logitech G305, and ASUS Gladius II Wireless. I personally wouldn't use it for absolutely competitive high-end play, but it's more than usable for anything else. Battery life is decent, but could again be better. The 1000 mAH Li-Po battery provides 16 hours of continuous use with a charge on 2.4 GHz, but if you disable all lighting, battery life can be up to 50 hours. Bluetooth is even better; however, performance would drop significantly, so make sure to stick with the Slipstream Wireless technology for gaming.

RGB functions are many on this product—the number of effects is vast, and there are three different, individually controllable lighting zones, which is just fantastic. The effects are nice and smooth, and the colors look vivid. Corsair iCUE is more than decent, though it could use some minor fine-tuning in terms of logical organization. It's rather heavyweight, but if you would like to, you can uninstall it after setting everything up because all the settings are saved to the built-in memory.

This mouse has the potential to be fantastic. Notwithstanding its weight, it's a well-made product of great build quality, choice of materials, buttons and such, but needs better firmware. Firmware, however, can be updated, which I hope will happen very soon.