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YK-XGF 星型给料阀
This set is suitable for hearing training not only in large scale but also in small scale and in foreign language class if matched with Model XGF-IB Portable Class-Use Transmitter.
该型耳机不仅适用于大范围的听音训练，还可以与XGF - IB型教室上课用手提传输机配合进行小范围的听力训练和上外语课。
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