Mobile users! Please use the FireFox browser to download! To my knowledge, only FireFox is capable of downloads using FTP. You can find the FireFox mobile browser at the Google Play Store: https://play.google.com/store/apps/details?id=org.mozilla.firefox&hl=en
Install it, click the [Download] button above. The player opens, press and hold near the player and you’ll get a popup menu to save the audio.