Universal Compatibility: Works seamlessly with most smartphones and tablets. Multi-Function: Use it for taking photos, starting and stopping videos, or navigating through presentation slides and e-books. Portable & : Easily fits in your pocket or on a keychain. Long Battery Life: Enjoy extended use without frequent recharges. Whether you're a professional photographer or a social media enthusiast, this Bluetooth remote control enhances your ability to capture and share your moments effortlessly. Compatible with popular platforms , it's an essential tool for content creators. Specifications: Product name: Mobile phone Bluetooth ring remote control Transmission frequency: 24-24835GHZ Applicable system: Support iOS15.0/Android 8.0 and above Operating voltage: 39-4.2V Bluetooth version: Bluetooth 5.3 Operating temperature: 0-50 Colour:black Material:ABS Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Page Turner 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.