Features: * Charge Anywhere, Anytime: 48 hours of continuous use. Provides convenient charging without any additional requirements.Compatible with mainstream APP in the market, portable and lightweight, the best friend for photography. * Smart Wearable Design: Ergonomic ring design makes you comfortable to wear, perfect gift for her or his birthday, Valentine's Day, etc. * Convenient Design: While enjoying the video, you don't need to swipe your finger for video, at the same time, you can control your phone camera to take photos and videos. * Multiple Functions: You can also scroll through video without having to manipulate pages up and down, volume up and down, play and pause, and send likes with your hands. (Can't control music playing app). * Bluetooth-compatible Remote Control: In phone photo or video mode, press and hold the up or down button on the finger ring from a distance of 10 meters. Specifications: Bluetooth-compatible version: V5.3 Bluetooth-compatible chip Input Power: .DC-5V Product Color: Black/white/pink Battery Capacity: 50mAh Use Time: About 48h continuous use Support Applications: Support mainstream applications includes: 1 * Bluetooth Compatible Remote Control 1 * USB Data Cable