Feature: 1. With 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. Good Compatibility: Suits perfectly for IOS, for Android and for Harmony OS operating systems, the remote page turner has wide compatibility. 5. Comfortable Wear: Conforms to the ergonomics, the Bluetooth page turner is mainly made of premium ABS material, very comfortable for long wear. Specification: Item Type: Remote Control Page Turner Material: ABS Remote Control Distance: Approx. 10m / 32.81ft Battery Type: 400909 li battery, model Battery Capacity: 30mAh， shipped with built in battery。 Signal Frequency: 2.4-2.4835GHz. Package List: 1 x Remote Control Page Turner1 x User Manual1 x USB Cable