This is a very useful docking station for the Duo. Not only does it charge the Duo but it can make it a large screen clock (10" is large enough thank you) but it is also an amplifier with built in speakers which does produce a better sound. So it is a recharge docking station, with a built in amplifier which can change the Duo into a clock with ambient 'noise'/soundcapes, which you can use also as a stand if you want to use a usb keyboard and mouse, and so keeping the Duo well ventilated. Oh I forgot it also provides a RJ45 connection if you require it and I haven't even mentioned the built in USB2 hub and multi card reader.. Certainly a bit of kit which compliments the Dell Inspiron Duo and for what it cost isn't that exspensive.