Thank you for your question — and for noticing this detail! The correct RF frequency of this device is 3 MHz, as listed in the specifications. The mention of “1 MHz” in the product description is a general reference to RF technology used in some professional systems, but it does not apply to this specific model. We apologize for the confusion. This device operates at 3 MHz, which is widely used for skin tightening and collagen stimulation, making it very suitable for aesthetic treatments. We will update the page to make this clearer — thank you again for pointing it out!