... Sound Card AUX in USB TF Card Reader MX-810 Detailed Product DescriptionPortable Mini Speaker with Built-in Sound Card MX-8101.Suit ... LED Display*2 Trumpet+ Subwoofer, nice bass and treble.*Built-in USB Sound Card, decode & control sound/music from PC, by connnecting with mini ... USB jack, when power off.*TF card/ USB reader, maximum 64GB.*Clock, Alarm Clock ...