二、解決方法
1、登錄微信；點擊右上角“?”圖標;如圖：
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2、在展開菜單中，點擊“設置”;
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3、在設置界面，點擊“通用”;如圖：
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4、在通用界面，可見“使用聽筒播放語音”默認為灰色關閉狀態；
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5、在通用界面，點擊“使用聽筒播放語音”後的圖標，灰色切換成綠色，即可設置使用聽筒播放語音。
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