1、Bluetooth Scrolling Ring: With it, you can scroll short video while on the treadmill without having to reach forward to scroll, thus avoiding any impact on your balance. Enjoy scrolling as you effortlessly browse short video without touching the screen. 2、Bluetooth Page Turner: Keep your hands inside the blanket and remotely scroll the short video or for Kindle APP. It does not support for Kindle devices, only applicable for Kindle APP. 3、Bluetooth Camera Remote Shutter: This scrolling ring can be used for taking selfie videos or photos without the necessity of setting a self timer. With its compact design, it's easy to carry, making photography more convenient and enjoyable. 4、Long Battery Life: Once fully charged, this scrolling ring is capable of working for at least 12 hours. Additionally, the charging case can charge the scrolling ring 5 times. Experience extended use with long lasting rechargeable battery. 5、Wide Compatibility: This device is compatible for Android devices. The connection distance can reach up to 30 feet. The comfortable, wearable design allows for extended use without strain. Item Type: Bluetooth Scrolling Ring Material: Ti Alloy, Electron Model: D03 Bluetooth Version: Bluetooth 5.3 Communicating Distance: 10m / 32.81ft Built in Battery Type: 25mAh Lithium Ion Battery (Included) Charging Case: Charging Time: About 1.5 Hours Charging Port: TYPE C Built in Battery Type: 250mAh Lithium Ion Battery (Included) 1 x Bluetooth Scrolling Ring 1 x Ring Charging Case 2 x User Manuals 1 x Cable