Hi there, this is Kelly with Dyson. Thank you for your review. The Corrale™ straightener uses four key pieces of technology. The flexing plates provide just the right amount of flex to gather and adapt to the hair, and also provide the tension needed for styling. The intelligent heater system delivers the required heat to the plates. Intelligent heat control regulates the temperature of the plates 100 times a second to make sure they never exceed your chosen temperature. And finally, a 4-cell lithium ion battery enables enhanced styling with cord-free versatility.   The Corrale™ provides up to 30 minutes cord-free styling and is fully recharged in just 70 minutes. You can also extend your run time by attaching the magnetic 360ᵒ charging cable for use in hybrid charge mode should you need longer. Also, while in use to help prolong the battery life, we'd recommend placing the straightener back on the dock, between styling sections of your hair. We'd value the opportunity to learn more about your experience with your Dyson as we'd like to help ensure you are having a 5-star experience. Please feel free to reach out to us at askdysonUS@dyson.com, and we will be in touch.   Best wishes, Kelly Dyson Customer Support

Hello, Thank you for your review. This is Miella from Dyson. We're happy to hear you've enjoyed the performance of the Dyson Corrale straightener. The Corrale is designed with flexible plates that conform to the hair, and with the intelligent heat control, with less heat damage than the conventional straightener. The Corrale does provide up to 30 minutes of styling time on the battery, depending on the heat setting used. In-between sections, we recommend sitting the Corrale on the charging cradle. As well, the machine can be used while it's charging; this is called "hybrid mode"! While the lithium-ion battery does add weight to the Corrale, the design is ergonomically sound so that it is balanced in the hand. We'd value the opportunity to learn more about your experience with your Dyson as we'd like to help ensure you are having a 5-star experience. Please feel free to reach out to us at askdysonUS@dyson.com, and we will be in touch. Best Wishes, Miella Dyson Customer Support

Hello there, this is Kelly with Dyson. We're happy to hear that you've loved the Dyson Supersonic dryer and Airwrap Styler so much, that you decided to add the Corrale straightener to your line up as well. The Corrale™ straightener uses four key pieces of technology. The flexing plates provide just the right amount of flex to gather and adapt to the hair, and also provide the tension needed for styling. The intelligent heater system delivers the required heat to the plates. Intelligent heat control regulates the temperature of the plates 100 times a second to make sure they never exceed your chosen temperature. And finally, a 4-cell lithium ion battery enables enhanced styling with cord-free versatility. The issue you're reporting sounds unusual. If your hair is wet or damp at all, and you're using the Corrale, you might hear a noise while the plates are passing over the wet hair. That would be normal to hear. If the hair is dry, there shouldn't be any type of drag or sound as the plates are making their pass. We'd value the opportunity to learn more about your experience with your Dyson as we'd like to help ensure you are having a 5-star experience. Please feel free to reach out to us at askdysonUS@dyson.com, and we will be in touch.   Best wishes, Kelly Dyson Customer Support

Hello, Thank you for your review. This is Miella from Dyson. We're so sorry to hear of your disappointment in the Dyson Corrale™ straightener. The Dyson Corrale was designed with flexible plates that conform to your hair and straighten your hair with less damage than the conventional straightener. It also has the added benefit of the option to use it in the cordless mode, providing up to 30 minutes of power. Alternatively, it can be used in hybrid mode while it's plugged in if you need more time. We'd value the opportunity to learn more about your experience with your Dyson as we'd like to help ensure you are having a 5-star experience. Please feel free to reach out to us at askdysonUS@dyson.com, and we will be in touch. Best Wishes, Miella Dyson Customer Support