Setup:1. Charge the Shaver: Before first use, fully charge the shaver for optimal battery performance. Connect the smart plug to the shaver and a power outlet.2. Attach Protective Cap: Ensure the protective cap is removed before shaving. Compatibility:- The included smart plug features automatic 100-240V voltage adjustment, making the shaver globally compatible and ideal for international travel. Care & Maintenance:- Cleaning: The shaver is waterproof up to 5 meters. After each use, rinse the shaver head and cutters thoroughly under running water. Allow it to air dry. Do not use abrasive cleaners. - Battery Care: To maintain the long life of the NiMH batteries, ensure regular charging. Avoid fully depleting the battery frequently if possible. - Protective Cap: Always place the protective cap back on the shaver head when not in use or when traveling to protect the foils from damage.