But Orbsmart SoundPad 400 can do much more (only the previously tested by me applications): It is a sophisticated and built by Android tablet, combined with good sounding stereo speakers, which not only has the tablet-usual microUSB port , Of particular note is the AC adapter / charger, which has a separate connection, so do not block the micro-USB connector. Useful are HDMI-out, line-in, and especially the included adapter, among other things Micro USB connector to USB-A port. You close to this on a USB hub, it has almost infinite possibilities of expansion ...