The Thermaltake Isurus Pro V2 is an inexpensive in-ear gaming headset aimed at mobile gamers. It offers a couple of features that separate it from "regular" in-ear headphones with an in-line microphone: It comes with a detachable steel headband, microphone mute switch, and dual 3.5-mm 3-pole (TRS) splitter cable, which makes it connectable to a desktop PC. Despite that, it should primarily be used with mobile devices since my tests showed that the microphone is too quiet or top noisy when the Isurus Pro V2 is connected to a PC sound card. To get microphone volume to satisfying levels on a PC, you have to use microphone boost. This isn't a problem if you have an external USB sound card of good quality, but will cause issues with static background noise on many integrated sound cards.

No such issues are present when the Isurus Pro V2 is connected to a smartphone or Nintendo Switch. The microphone quality still isn't the greatest, but your teammates at least won't have trouble understanding you. All of this is due to Thermaltake's decision to put the microphone on the left earpiece instead of opting for the more traditional implementation with the microphone on the in-line remote control, which puts it much closer to the mouth. On the upside, it won't brush up against your clothes and cause irritating noise.

The sound quality of the Thermaltake Isurus Pro V2 is generally very solid considering the $40 price tag. As long as you spend some time finding the ear tips that fit you best—three pairs of different sizes are supplied—you'll be greeted by a decent, midrange focused sound performance. Vocal reproduction is what the Isurus Pro V2 in-ear headphones do best, along with revealing such audio cues as footsteps, guns being reloaded, and similar. The subdued high range doesn't let them truly shine in terms of spatial positioning, although I'd still rate the high range as good enough.

Would I recommend buying the Thermaltake Isurus Pro V2? Only under two conditions: you're on a very limited budget and don't already own a pair of in-ear headphones with a built-in microphone you're satisfied with. These don't offer enough to be a worthwhile upgrade to a pair of generic in-ear headphones, which many of us have laying around from our earlier days, when wireless headphones weren't all the rage.