Unverified80% confidenceDecision RuleTime unknown
有线入耳式线材长度1.2m是绑手机通用标准，1.5m以上适合接台式设备或口袋在包内，线材越长听诊器效应(线材摩擦传导噪音)越明显，建议选带线夹或绕颈设计
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