1. Non-invasive finger care design, no need for needles or blood sampling 2. Simple and intelligent operation, easy for seniors to use 3. Lightweight and portable design, USB rechargeable power supply 4. Promotes finger circulation and assists in daily body maintenance 5. Timed gentle light therapy mode for convenient, regular treatments 6. Suitable for middle-aged and elderly people, sedentary office workers, and those seeking daily health maintenance.