Item Type: Bluetooth Remote Control Page Turner Material: ABS, electronic components Ring Battery Type: Lithium battery Ring Battery Capacity: 25mah Charging Case Battery Type: Lithium battery Charging Case Battery Capacity: 200mah Package List 1 x Remote Control 1 x Charging Bay 1 x Data Cable 1 x User Manual 1HANDS FREE CONVENIENCE: Remote control of smartphone cameras and reading apps without touching the phone. Ergonomically designed rings ensure maximum comfort and ease of use 2MULTIPLE FEATURES: From video apps to e books, this remote ring offers a range of easy to use features. Easily control turning pages, taking photos and videos, adjusting volume, pausing and playing content 3ONE KEY LOCK SCREEN: Remote control page turner adopts silent keys, no noise at night, easy to use, support simple operation 4REMOTE CONTROL: Scrolling ring controls distances over 10meters, can be used for watching movies, online classes, meeting presentations, cooking, exercising, relaxing, and more 5LONG BATTERY LIFE: The shutter selfie button has a built in 25mAh battery that can be used continuously for 48 hours or more on a single charge, and standby time can be extended to more than 4 months