Your Cymbal sports a microSD memory card slot. If your laptop or personal computer has a slot for that card format (Most laptop computers are so-equipped), you should be able to transfer music files
Your Cymbal is equipped with Bluetooth version 4.0, which lets you connect to your computer wirelessly. Just pair phone and computer together and drag and drop your audio files from your computer to your ZTE Cymbal.
If these techniques do not work for you or if you don't want to buy extra accessories, you can always use one of various free '3G Uploader' services available online. You should find plenty with a simple Katapulco.com search. 3G uploaders are simple to use: Upload your own free ringtones on their web site and they will return a temporary web address. Pointing your ZTE Cymbal's web browser to that address will download the free ringtone.
Here is a sample of the free ringtones (compatible with your ZTE Cymbal) we offer:
Free Horror Ringtones Free Ghost Ringtones Free Short Ringtones Free Techno Ringtones Hear All Our Free Polyphonic Ringtones