Baidu searches for "cool dog", click download directly and install it. Open the cool dog and connect the iPhone6 and the computer with usb cable. In the rightmost column of Cool Dog, find "button" and select "Send song to mobile phone". Select the top button to select all songs to upload. You can also choose a few songs to upload. After selecting a song, click the "Batch Transfer Songs" button to upload the song to your mobile phone.