There's a reason so many women have tried a cordless brush once, been unimpressed, and gone back to packing the heavy one.
Go and read the reviews on the cheap end of this category and you'll find the same two sentences over and over. “It doesn't get hot enough.” And “the charge didn't last — I had to recharge it after one fifteen-minute use.”
Both complaints are the same complaint. A heated tool is a power problem before it's a hair problem. Undersize the battery and you get a device that either runs briefly at a useful temperature, or runs a long time at a temperature that just warms your hair up and annoys it. The listing almost never tells you which — because “runtime” and “actual plate temperature” are precisely the two numbers that would lose the sale.
So people buy one, get a lukewarm brush that dies on day two, and conclude that cordless styling doesn't work.
Cordless styling works. Underpowered cordless styling doesn't. That's a completely different sentence.
Aurelle Go publishes both numbers, on the box and on this page: the styling time per full charge, heat settings up to the stated maximum, from the stated battery capacity. Not a range, not “long-lasting”, not “powerful” — the actual figures, so you can decide before you buy instead of finding out in a hotel room.
We'd rather publish a number you can plan around than a promise you can't.