[07/06/2014] 學習用電子琴，54 Keys Keyboard Student Electronic Digital Piano – with Notes Holder & AC Adapter (Free eLessons & DirectlyCheap(TM) Translucent Blue Medium Pick) – Color may vary，共54鍵，定價$139.95，特價只要$59.95 USD。Prime境內免運費。哪裡買：amazon。