Wireless Speaker Timer Lights 作者：Michael Weinberg · 範例作品 · 8 次瀏覽 · 0 次改作 A radio remote and two battery LED bars that let a moderator tell a panel speaker, silently, that time is running out 0儲存改作複製連結 零件費用估計 難度簡單零件2 個零件 · 5 件 開始組裝指南 →