Its becoming a tradition for Razer to show off some pretty wild prototypes at CES, but the concept gaming chair with integrated heating and cooling it just unveiled actually sounds downright practical. Project Arielle is a mesh gaming chair that features a bladeless fan system thats designed to keep you at a comfortable temperature regardless of what environment youre in. We briefly tried it here at CES 2025 and its cool! Or warm, depending on the mode you set it to. When my colleague Sean Hollister tried it, he found it didnt just warm or cool his butt, but gently and quietly blew a substantial amount of climate-controlled air onto his upper back from small holes along the chairs top edge.A more comfortable way to freeze your butt off. Photo by Antonio G. Di Benedetto / The VergeBuilding on the $1,049 Razer Fujin Pro mesh gaming chair that you can currently buy, Project Arielle has three adjustable fan speeds that can reduce the perceived temperature by 2 to 5 degrees Celsius (around 3.6 to 9 degrees Fahrenheit) in dry environments, according to Razer. That sounds pretty useful if you live in a hot climate or if your gaming PC kicks out enough heat to turn your room into a sweatbox. Heres a rendering that shows how the hot or cool air is dispersed from the chair. Image: RazerFor chillier environments, the chair has a built-in PTC heating system (the same kind found in most vehicles and heated car seats) that can spit out warm air at 30 degrees Celsius (86 degrees Fahrenheit). The fans and that temperatures are adjusted using touch panel controls located next to the seat pad. And given this is a Razer product, theres obviously RGB lighting throughout the chair. By default, its set to Razers trademark green when its off, and we saw the edge glow red when warm, blue when cool, and purple or orange when cooling or warming. Icons on the touch-controlled panel and the built-in RGB lighting indicate whether the chair is set to blast warm or cold air. Photo by Antonio G. Di Benedetto / The VergeOne downside: you cant spin 360 degrees in this chair without wrapping a cord around yourself, as it does need to be plugged in. But even the prototype already has a cable thatll safely disconnect if you accidentally give it a yank.The breakaway cable will disconnect if its pulled, kinda like the early Xbox controllers. Photo by Antonio G. Di Benedetto / The VergeGiven Project Arielle is only a concept chair, this unfortunately isnt something you can actually buy just yet. Razer has showcased a lot of quirky gaming gadget concepts at CES over the years, including chair cushions that shake your ass with haptic feedback. While some do eventually get released as fully realized products such as the Razer Edge gaming tablet born from Project Fiona and the Zephyr RGB face mask that got the company into trouble with the Federal Trade Commission over N95 compliance claims others, like the Project Sophia modular desk computer and Project Valerie triple-screen laptop, have never been rolled out.