The Sennheiser GSP 670 openly aims for the title of best wireless gaming headset in existence. That's how it's priced, and that's how it performs. Let's get a couple of things out of the way immediately: it's well built and comfortable, its sound quality is equally great for gaming, movies, and music, and its microphone is decent, too. The software driver offers a couple of nifty extras, such as a system-wide equalizer, preinstalled and custom sound profiles, microphone sidetone and noise gate, and the battery-conserving auto shutdown feature.

Do you really need all of that? No, you probably don't. If you're after a good wireless gaming headset, you definitely don't have to spend this much money. The excellent SteelSeries Arctis 7 (reviewd here), HyperX Cloud Flight (reviewed here) or Corsair Virtuoso RGB Wireless (reviewed here) will cost you a third of the price of the GSP 670, and they are what you should be looking at if your goal is to get the best quality for a reasonable amount of money. On the other hand, the Sennheiser GSP 670 comes into play if you are after the best product on the market.

Realistically, if you've got $350/€350 to spend, you'll find yourself picking between the GSP 670 and the SteelSeries Arctis Pro Wireless, two of the best wireless gaming headsets money can buy. Ideally, I'd tell you which one is better and that would be that, but things aren't that simple. Both have a lot going for them and neither has any glaring issues. They sound significantly different, which I covered in the audio performance section of this review, but end up being equally impressive for just about anything you might use them for. The Sennheiser GSP 670 has a significantly wider, more open sound, while the SteelSeries Arctis Pro Wireless offers a more intimate listening experience with a slightly leaner, albeit snappier bass. The mids and highs are extremely detailed and well presented by both.

The Arctis Pro Wireless feels more luxurious due to its exposed metal frame and stretchable headband. It's also a lot more compact and "stealthier" looking—I could see myself using it on the go (like the GSP 670, it offers Bluetooth connectivity along with the standard 2.4 GHz radio) without looking like an idiot, while the GSP 670 is far too bulky and overdesigned for that. An area where the Arctis Pro Wireless takes a clear victory over the GSP 670 is the battery. The SteelSeries headset comes with two batteries; while you're using one, the other is being charged inside its base station. Once the battery runs out, it takes about three seconds to swap them around. In a sense, that turns the Arctis Pro Wireless into a wireless headset with a battery that never runs out. What the Sennheiser GSP 670 can do and the Arctis Pro Wireless can't is to turn on automatically when an incoming audio signal is detected.

The Arctis Pro Wireless also functions better as a multi-platform gaming headset. Even though it comes with a powerful Windows driver software, you can also access and adjust all of its settings through the OLED screen on the base station. Some features of the Sennheiser GSP 670, such as the chat wheel or the microphone sidetone and noise gate features, only work on PC, as they're fully reliant on the Sennheiser Gaming Suite software.

Microphone quality? Sennheiser is the obvious winner, as you can hear in the microphone performance section of this review.

Regardless of your final choice, one thing is for sure—you're getting a terrific, top-of-the-line wireless gaming headset. In many ways the Sennheiser GSP 670 is the best gaming headset this legendary company ever made. Considering the rest of their current lineup, that's no small feat.