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https://gongjak.me/2017/03/31/%ec%82%ac%ec%9a%a9%ea%b8%b0-%ec%98%a4%eb%89%b4onew-%eb%b8%94%eb%a3%a8%ed%88%ac%ec%8a%a4-%ec%9d%b4%ec%96%b4%ed%8f%b0-er700c/
[사용기] 오뉴(ONEW) 블루투스 이어폰 ER700C