Main Features: • Enjoy music with single or both earbuds at anytime • 500mAH charging box, about 3.5h charging time for box • Intelligent noise reduction • Bluetooth 5.0, sound synchronization without delay when playing games • Automatically pairing after taking out • Half in-ear design, comfortable and hard to fall down • 6D stereo 13mm speaker, clear sound • Double-click the multi-function to call SIRI, Eg: Siri Yoyo Xiaomi • One-click control, easy to use