1. Low power:Low power consumption, long battery life. It charges for two hours and works continuously for about 48 hours. 2. Like / lock screen in the air:Scroll a short video, remotely controllable double click at , you can lock the screen with a key at any time! It supports switching songs and videos, and supports fast and fast rewinding of video apps. 3. Remote Page Turning:For novels / comics / e-books, you can easily turn pages remotely without lifting your arms, making reading more comfortable, suitable for most traditional reading / comic apps. 4. Free your hands:Remote control, used in many occasions: Remote video / drama, Selfie, video recording. The ring controls the artifact, which can take full body / multiple people photos together, one button remote control and 10 meters remote control distance. 5. Smart Wearable Design:The ergonomic design of the ring allows you to do it comfortably, it is a for birthday, valentine's day, etc. Compatible with traditional apps on the market (short videos, cameras, novels, etc.), portable and , it is the best partner for the lazy.<br><br>Support App: Yes Product Colour:black Bluetooth compatible version: V5.3 Support protocol: BLE Transmitting power: class ll (-6dBm - 4dBm) Frequency: 2.40GHz-2.48GHz Bluetooth compatible transmission distance: 15m Charging interface: Type-C Input current: DC 5V Battery: 1X50mAh Battery life: 48 hours Charging time: 30 minutes Colour:Black Material:Plastic<br><br>Package Contents: 1x Fingertip Button Remote Control<br><br>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.