The SteelSeries Arctis 9 Wireless is an excellent wireless gaming headset. Its key selling point is dual wireless support, so it can simultaneously connect to the supplied 2.4 GHz radio frequency dongle and a Bluetooth source. You can have it connected to your PC and phone to answer phone calls while gaming. Or you can connect it to your PlayStation 4 or 5 and use the Bluetooth connection to your phone to connect to a Discord server. Of course, you can also use it as a "pure" Bluetooth headset for mobile music listening or gaming, although there are definitely cheaper Bluetooth-only options available.

Of course, the dual wireless connectivity on itself wouldn't be enough to justify the fairly high $200/€200 price tag. Luckily, the SteelSeries Arctis 9 Wireless has a lot more going for it. The build quality is excellent, it is superbly comfortable and can be worn for many hours at a time, and let's not forget about its intuitive onboard controls, including the ChatMix Dial, a wheel that lets you balance the sound volume between two software sources, such as the game you're playing and Discord.

The accompanying SteelSeries Engine 3 software driver is easy to use and filled with useful features. Among them is a 10-band system-wide equalizer, as well as microphone sidetone (microphone monitoring) with an excellent, zero-lag implementation.

Then there's the sound quality, yet another aspect where the SteelSeries Arctis 9 Wireless offers a lot. It's tuned similarly to other higher-end gaming headsets from the Arctis lineup, offering excellent detail retrieval, good bass, and a well-balanced sound signature in general. The built-in speaker drivers respond well to equalization, so there's plenty of room to tune them to your preference should you find their out-of-the-box tuning lacking. The DTS Headphone:X V2 virtual surround sound technology is a pleasant surprise as well. It's fairly subtle in what it does, which makes it worth trying.

Aside from a fairly steep price, the main drawbacks of the Arctis 9 Wireless are its Micro-USB charging port instead of a much more appropriate USB-C port and an irritating white LED on the supplied wireless dongle, which keeps blinking whenever the headset is not on/connected. That said, these are only minor annoyances that don't take much away from a great overall impression. If you're looking for an excellent wireless gaming headset with 2.4 GHz RF and Bluetooth connectivity, the Arctis 9 Wireless should be at the top of your list.