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 will, you can lock the screen with a key at any time! It supports switching songs and videos, and supports fast and fast rewinding of various 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 / chasing 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 perfect gift for birthday, valentine's day, etc. Compatible with traditional apps on the market (short videos, cameras, novels, etc.), portable and lightweight, it is the best partner for the lazy.Support App: YesProduct Colour:blackBluetooth compatible version: V5.3Support protocol: EDR BLETransmitting power: class ll (-6dBm - 4dBm)Frequency: 2.40GHz-2.48GHzBluetooth compatible transmission distance: 15mCharging interface: Type-CInput current: DC 5VBattery: 1X50mAhBattery life: 48 hoursCharging time: 30 minutesColour:BlackMaterial:PlasticPackage Contents:1x Fingertip Button Remote ControlOnly 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.