Charge anywhere, anytime: Enjoy 48 hours of continuous use. Provides convenient charging without any extra requirements. Compatible with popular apps, portable and lightweight, the perfect companion for photographers. Smart portable design: Ergonomic ring design for comfortable wear, a perfect gift for birthdays, Valentine's Day, etc. Practical design: Control your phone camera to take photos and videos while enjoying videos without needing to swipe. Multiple functions: Browse videos without manually scrolling, adjust volume, play/pause, and send likes with ease. (Cannot control music playback apps). Bluetooth-compatible remote control: In phone photo or video mode, press and hold the up or down button on the finger ring within a 10-meter range. Bluetooth-compatible version: V5.3 Bluetooth-compatible chip Power output: DC-5V Available colors: Black / White / Pink Battery capacity: 50mAh Usage time: Approximately 48 hours of continuous use Supported applications: Consumer app support Includes: 1 * Bluetooth-compatible remote control 1 * USB data cable