Universal compatibility with iOS, Android, and HarmonyOS systems for easy control across various devices. Lightweight and portable design, weighing only 10 grams for convenient wear and carry. Enhanced media experience with dedicated photo and video shooting controls, flexible zoom, and focus adjustments. Comprehensive music controls allowing play/pause, track skipping, and volume adjustment even with the phone screen off. Long battery life powered by an advanced AI smart chip and efficient Bluetooth V5.3 connectivity. This universal smart ring supports iOS, Android, and HarmonyOS systems, making it compatible with phones and tablets for easy control across various devices. You can easily manage calls, browse popular short video apps with intuitive swipes and likes, control music playback, and browse ebooks or comics. Color: Translucent Black Material: Abs Package Contents: 1*Ring remote control 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.