The New Crazy Grow 650 nm Red LED Light Therapy Hat is a portable and adjustable unit designed for promoting hair growth in both men and women. With a rechargeable battery as its power source, this black-colored hat is easy to use and transportable, making it practical for on-the-go treatments. The hypoallergenic and dimmable features ensure a comfortable and customizable experience for those looking to improve their hair growth naturally. Made in China, this LED light therapy hat is a innovative solution for those seeking alternative remedies for their hair loss concerns.