型号：D40 蓝牙版本：5.4 颜色：白色、黑色 待机时间：180小时 耳塞电池：40mAh 充电盒电池：300mAh 充电时间：1-2小时 充电电压：3.7V 输入电压：5V 运输包装：礼盒包装 规格：CE、RoHS、FCC认证 商标：AiL 产地：中国深圳 HS编码：8517629900 生产能力：每月500000件
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