The Wahl Color Pro All in One Rechargeable Cordless Trimmer comes with a color-coded guide comb system to streamline the process of finding and recalling preferred hair cutting lengths. Matching the appropriate attachment comb color to the desired cutting length on the colored label key on the trimmer allows you to quickly identify the correct comb size. Personalize your beard style with any of the eight included comb cutting sizes ranging from 1/16” to 1/2”. For multi-purpose use, the kit includes 3 easy interchangeable heads to groom where you need to: Trimmer Blade Head, Precision Detail Trimmer Head, and the Rotary Trimmer Head. The trimmer blade contains self-sharpening precision blades that stay sharper longer for quick and painless hair removal of beard or mustache hair. The precision detail trimmer head has a small blade, that makes it easy to trim tight areas around the mustache, goatee, nose and eyebrows. Finally, the rotary trimmer head is the perfect shape to hygienically trim the sensitive areas of the nose and ear. This cordless trimmer is rechargeable, simply plug it in to charge and unplug when ready to use. On a full charge, you can achieve up to 80 minutes of runtime for multiple trimming sessions. Note: This trimmer is made for usage in the USA only. We test our Wahl hair trimmers for men for cutting performance prior to packaging with a hygienic fiber. We do our best to clean the product to remove any testing particles, but it is possible a few may remain. They are not hair and can be simply wiped off.