Gabb Phones don't have a typical web browser and don't generally allow third party app installation, but you can still load music onto one for off line listening. Connect the Gabb Phone to a PC using a ZTE USB Type-C cable, then select File Transfer. Locate and choose the .mp3 music files you want to load onto the Gabb Phone. Mac users will have to use an app like Android File Transfer to load music directly onto a microSD card.