Portable and Compact DesignThe device is made of hard plastic material, compact and light enough to carry around. You can enjoy nail improvement whether at home, in the office or outdoors. Save you time and money from doctor visits.Therapeutic Principle 910nm infrared light (invisible) and 407nm blue light (3pc) are used to pass through the nail plate, mechanically damaging the fungal cell wall, causing the nail plate temperature to rise to 43 degrees Celsius to 51 degrees Celsius, resulting in thermal damage to the fungus and thus producing a therapeutic effect. Easy to operate Before using the product, clean your nails or soak them in hot water, dry and cut them to make them as thin as possible. It is best to wipe them with alcohol for 7 minutes each time, twice a day, and it is very important to persist for 3 months. You will see significant improvement.Convenient Charging This product is equipped with a Type-C cable, which is compatible with most chargers. It only takes 90 minutes to fully charge and has a long life. However, it is recommended that you charge it after 5-6 uses to ensure your continued treatment.Warm Tips The infrared wavelength of this onychomycosis device is invisible, and it does not mean it is broken. Its portable design is not suitable for people with particularly large thumbs, and it will take 2-3 months of continuous use before your nails will see significant improvement.