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Continue to ChatSOSの音、統一を=防犯ブザーもバラバラ-「迷わず行動できるよう」・消費者団体:時事ドットコム https://blog.40ch.net/2018/07/15/sos-sound-unity-security-buzzer-also-falls-apart-be-able-to-act-without-hesitation-%c2%b7-consumer-group/
SOSの音、統一を=防犯ブザーもバラバラ-「迷わず行動できるよう」・消費者団体:時事ドットコム https://blog.40ch.net/2018/07/15/sos-sound-unity-security-buzzer-also-falls-apart-be-able-to-act-without-hesitation-%c2%b7-consumer-group/