Moblie multiple power extension socket can be fit together one by one, ... ,3.0M) 3)CE Moblie multiple power extension socket can be fit together one by one THIS IS ... bottom case,easy to roll .One button can control four sockets,one layerDifferent function can be choose:USB ... extension socket, take apart one,using as a adaptor plug.Different function can be choose:2USB ,surge protect,remote control,digital ...