Features: 1. Remote Controller: Linked via Bluetooth, when browsing phone APPs, you can slide the video through the ring, operate the page up and down, volume up and down, play and pause, send like, etc. free your hands. 2. Mobile Phone Camera Shutter Control: Efficient and stable Bluetooth chip, stable Bluetooth signal transmission within 10 meters. Take various creative photos/videos to record your good times. 3. Rechargeable: Only one charging cable is needed to charge the product, which is convenient. The controller can work continuously for multiple hours, no need to buy additional batteries. 4. Easy to Carry & Use: The size of the remote control video page turner is 37.3 x 18 x 32.9mm, the design is small and compact, it can be placed in the pocket of the clothes, and it is easy to carry. 5. Widely Used: Ring-shaped design, matte material, comfortable and beautiful to wear, you can not only lie down and watch phone videos/e-books/news, but also take selfies at will, you don't need to take off your gloves to operate your phone in the cold winter. Specification: Material: ABS Color: Black, Pink, White Size: 37.3 x 18 x 32.9mm Battery Capacity: 50mAh Bluetooth Version: V5.3 Bluetooth Chip Use Time: Continuous Use About 48h Input Power: DC5V Support APP: Support Mainstream APP Weight: 6g Package Included: 1 x Bluetooth Remote Control Video Page Turner