1、Prime Material: Smart ring controller is made of premium ABS material, wear resistant, light weight, not easy to damage, sturdy and durable. 2、Easy to Operate: Fine workmanship, high sensitivity, simple operation, free your hands, protect your eyes, convenient and practical. 3、Functions: Remote control, scroll up and down the screen, remote control to watch videos, give your favorite videos likes, page turning e book, etc. 4、Long Control Distance: The remote page turner can be connected to 10 meters / 32.8 feet, easily connect your device and control it even from a long distance. 5、Rechargeable: Built in 50mAh rechargeable battery, standby time is about 4 months, Bluetooth remote control page turner use for a long time. Item Type: Remote Control Ring Material: ABS Electronic components Weight: 33g / 1.16oz Battery Type: Lithium battery (shipped with built in battery) Battery Capacity: 50mAh 1 x Remote Control Ring 1 x Charging Cable 1 x Instruction Book