Features 1、BLUETOOTH 5.3: Bluetooth remote control ring adopts Bluetooth 5.3, easy to match and open Bluetooth connection to use. 2、PAGE TURNING FUNCTION: App page turner supports novel or comic page turning, one key remote control, easy and comfortable reading. 3、REMOTE CONTROL: Bluetooth remote control uses remote control technology, supports 10m operation, and supports multiple APPs. 4、LONG BATTERY LIFE: Bluetooth remote control scrolling ring has low power consumption and long battery life, charging 2h, continuous working 72h. 5、ERGONOMIC DESIGN: Remote control ring is suitable for different width of fingers, charging port is facing outward, indicator light is on the right. Specification Item Type: Bluetooth Remote Control Ring Material: ABS Bluetooth Version: V5.3 Bluetooth Chip Remote Control Distance: 10m/10.9yd Battery Type: 50mah Polymer Lithium Battery (Shipped with Built in Battery) Applicable System: for iOS 15, for Android 8.0 Or Above, for Harmony OS Operating Hours: 72 Hours Package List 1 x Bluetooth Remote Control 1 x Instruction Manual 1 x USB Cable