Wireless control: Serves as a page turner and remote shutter, keeping hands for reading, recording, or capturing photos and videos. Connection and compatibility: Pairs easily with most smartphones, delivering stable performance for music practice, cooking, or presentations. Functional uses: Acts as a scoring ring for musicians, a selfie shutter for travelers, and a reading tool for students or the elderly. Portable ring design: Lightweight and compact, fits comfortably on a finger for convenient use at home, in classrooms, or while traveling. Use scenarios Reading and study: While reading on a phone or tablet, turn pages without touching the screen to maintain focus and comfort. Travel and photography: Use as a remote shutter for selfies or group photos, or to start and stop video hands during trips or events. Music practice and learning: Use as a scorekeeping ring for musicians during practice, while also enabling quick photo or video capture of performances for review.