Portable Audiophone is a new toy for Pacth 6.1. You can get Portable Audiophone when upgraded to Garrison level 3 and completed some quests. Besides, you can use Portable Audiophon to freely switch the background music of Garrison, since Blizzard offered 31 classical music.
1.You will get Portable Audiophone.
2.You need to provide your account.
3.Your character needs to be lvl 50.
4.Estimated time: 1-3hours.