Your ZTE Blade 3 Max sports a microSD memory card reader. If your laptop or personal computer can also read that card format (Most laptops are so-equipped), you should be able to transfer a music file
The ZTE Blade 3 Max is a smartphone. Most smartphones should let you save any song found online by tapping and holding your finger on it and selecting 'save.' Once a music file is saved to your media library, touch-and-hold it and choose 'assign' from the drop-down menu.
The ZTE Blade Max 3 is an Android smartphone and the Android market offers a bunch of free ringtone apps such as MP3 Ringtone Maker, RingDroid (open source) and more.
Here are some of the free ringtones (compatible with your ZTE Blade Max 3) we offer:
Free Horror Ringtones Free Ghost Ringtones Free Ringtones-a-gogo Free Techno Ringtones Hear All Our Free Polyphonic Ringtones