with the remote scrolling ring, users can effortlessly control page scrolling, adjust volume, play/pause, and like videos, all free from touchscreen limitations The remote can also be used as a page turner for allowing users to have a hands-free page-turning experience, freeing them from the cumbersome touchscreen operation. Duration of use: Approximately 48 hours of continuous use Product Features: Selfie, Like, Flip Up, Down, Left, Right, Volume Up and Down Specifications: Type: Bluetooth Finger Air Mouse Product name:ring remote control Bluetooth version: V5.3 Bluetooth Battery capacity: 40mAh Colour: Black Material: ABS Package Contents: 1 x remote control 1 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.