Unverified80% confidenceSolutionTime unknown
社区活动扩声方案:小型(<20人)选20W便携蓝牙音箱;中型(20-50人)选30-50W带无线话筒音箱;大型(>50人/户外广场)选拉杆式专业音箱+双无线麦+TF卡直播放
1
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80%
Confidence
Long-term
Relevance
-
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