Well designed: not too big, well compact when folded, even the design is defending. 4 He pulls to the side that allow to operate 4 plugs (separately) corresponding to many geographic areas (including most of Europe, China, the UK, Japan, much of America ...). A final button to fold the plugs.
Sold Voltage: 100 to 250V (beware I think in some countries), integrated fuse (it can be useful).
As for connectivity: 2 USB ports work well, including two connected devices.
By against big downside to the socket: it only accepts plugs landless and still "small" models (no chance to put a CEE 7/17 plug, that is to say, the "big "doubles and round plugs). So not load his computer, some or all of the powerful devices. Then even if your device has a small plug, it does not always work! It depends on the components: (!) My razor charger no, my electric tooth brush yes, my hair dryer so few seconds ... I do not really understand this variable efficiency is probably due to a fault My charger seen other reviews, which is a shame for a test device.
Well the idea is still nice and should troubleshoot good trip.