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["上海步频电子科技有限公司"]
[]
[]
["MD-650无线抢答器招标参数"]
["产品型号",null,"描述",{"$nulls":3},"参考图片"]
[]
["主机",650,"尺寸：167mm ×129mm ×30mm\n液晶显示屏：76mm ×48mm                                                                                                                      \nMD-650型无线抢答器是本公司推出的一款可以单机使用，配置电子主显示屏的无线抢答器。MD-650主机彩用大液晶显示屏实时显示，操作一目了然，方便操作。抢答盒配有三种彩光显示抢答状态。现场效果极佳。"]
["主显示屏","2.3寸","尺寸：(13英寸）29cm×22cm                                                                                                                      \n功能：显示抢答开始倒计时、选手抢中台号、回答问题倒计时"]
["无线抢答盒",null,"尺寸：55mm×83mm     （高 ×宽）                                                                                                                \n彩色三色灯无线抢答盒、开始抢答时亮蓝灯，抢答犯规亮红灯，抢答成功亮绿灯、与主机通讯有效距离为R=50米"]
["电源适配器","12v","5V"]
["遥控器",null,"功能：主持人专用遥控器\n身形小巧使用便捷灵活\n有效距离R=10米"]
["保修卡\n合格证\n说明书\n主屏螺丝\n"]

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