So, when it comes to how noisy the Ninja SS151 TWISTi Blender DUO is, imagine it being on the louder side, which isn’t unusual for blenders with strong motors.
According to the manufacturer, it's got a 1600 Peak-Watt motor, which really does a great job with smoothies and purees. But with that power, you can expect a fair amount of noise.
From our research, folks say that while it really shines in performance, the noise might be noticeable, especially if you're blending in a quiet environment. That's just kind of expected when dealing with tougher or frozen ingredients.
If you're hoping for something that whispers while it works, you might want to hunt for a blender that’s labeled as 'quiet' or has some kind of noise-reducing tech. But if raw blending power is more your thing, this Ninja should do the trick.
A quick heads up though—this blender isn't made for hot liquids, so sticking to cold smoothies and such is the way to go.
In short, if you're set on this blender, just be ready for a bit of noise while it gets the job done, which is pretty normal for models that pack this much punch.