Feature: 1. Stable Signal: Ensuring stable signal transmission, the page turner with 2.4‑2.4835GHz signal frequency enables convenient remote control. 2. Remote Controller: Having worn this ring controller, you will find it much easier to view electronic books, video, filming, give a like, etc. 3. 3 Buttons Control: There are only 3 buttons on the remote control, which are more than enough to operate the APP on your phone, very simple. 4. Applicable Models: Suits perfectly for IOS, for Android and for Harmony OS operating systems, the remote page turner has wide compatibility. 5. Comfortable To Wear: Conforms to the ergonomics, the Bluetooth page turner is mainly made of premium ABS material, very comfortable for long wear. Specification: Item Type: Bluetooth Remote Control Page Turner Product Material: ABS Weight: Approx. 25g / 0.9oz Remote Control Distance: Approx. 10m / 32.8ft Battery Type: Lithium Battery (Shipped With Built In Battery) Battery Model: 401012 Battery Capacity: 30mAh Signal Frequency: 2.4GHZ-2.4835GHZ. Package List: 1 x Remote Control 1 x Manual1 x USB Cable