◆ Offline music player lets you import your favorite music and play it anywhere, anytime even without a Wi-Fi. ◆ You can also discover millions of free songs and videos, bookmark and organize your favorite music videos, create playlists, and listen to unlimited free music on your iPhone. ◆ The most important feature is that it corrects your sitting posture in real time while wearing AirPods. Improve your neck,head, shoulder and back posture without having to purchase a separate tracking device. ...