Adapter is not included to avoid wasting resources, but you can charge it using any 5V DC adapter with USB-A port on hand. If need, get from COSLUS. Packaging may vary (new or old), but the contents are exactly the same. W40 Whitening Flosser T40 Kids water flosser C30 Electric Toothbrush T40 Mini water flosser E1 Desktop Water Flosser C20C41 flosser toothbrush E40 Speed Water Flosser Why does the COSLUS water dental flosser only have three modes? Developed over 3 years through extensive user testing, this flosser ​​offers 3 simplified modes for ultimate ease of use. Suitable for all ages, from teens to seniors, it is built to deliver a premium lifespan of 3 years. What is the intensity of the water pressure? Which mode should I choose? This flosser features three pressure modes: high (Clean), medium (Message), and low (Soft). First-time users should start with the gentle Soft mode. Any initial gum bleeding is normal and should subside quickly as gums adapt. Do you need to add water a lot during use?​ No, this water tank ​​has an upgraded, super-large capacity of 300ml, which is enough for a 2-minute cleaning session.​​ Where can you get replacement tips? Nozzle Replacement: For best results, replace every 3 months. Find accessories on our product page, website, and COSLUS store. Does the package include the charging adapter? ​​The​​ adapter is not included to avoid ​​waste​​. You can charge it using any standard 5V adapter (like one from a phone or tablet). If needed, you can purchase a compatible adapter from COSLUS. Insistir en inyectar un concepto de valor de mayor calidad en el diseño y desarrollo de productos, pulir productos con innovación y alto valor, adherirse al espíritu artesanal de excelencia de la marca en los detalles, y brindar continuamente una experiencia de cuidado "íntima" más detallada y multisensorial a la mayoría de los usuarios.