Convenience Control: Remotely control smartphone cameras and reading applications without touching your phone. The ergonomically designed ring ensures maximum comfort and ease of use. Versatile Use: From video applications to e-books, this remote control ring offers a range of easy-to-use functions. Effortlessly control page turning, take photos and videos, adjust volume, pause and play content, and clip music. Remote Control: Effective control from a distance of up to 10 meters, can be used for watching movies, online courses, meeting demonstrations, cooking, exercising, and relaxing. Long Battery Life: The built-in 25mAh battery can be used continuously for 48 hours or more on a single charge, and standby time can be extended to over 4 months. Other Functions: In addition to standard remote control functionality, the device can also simulate mouse movements and precise operation of smartphone applications. 1-click lock screen with silent buttons at night, easy to use and operate.