Wireless Speaker Timer Lights 作者：Michael Weinberg · 示例作品 · 8 次浏览 · 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保存改作复制链接 零件费用估算 难度简单零件2 个零件 · 5 件 开始组装指南 →