優聲國際在全球范圍內分布著大量的藝術家，為全球的優聲會員提供專屬的定制服務。海內外的藝術大咖通過線下、線上、直播等方式，定期讓我們的會員與大咖零距離接觸、示范性教學。

What is the UMASTER?

The rendezvous of domestic and foreign famous players. Unsn let our members to contact with those famous players by using live performance regularly.