Bought for a stay in Britain. I thought to use it mainly for the electric razor, but in fact there sockets in the bathrooms are often compatible FR / UK, different catches of other parts, including in hotels. So I used it to simultaneously charge the smartphone and the tablet, thanks to the two USB ports. Another advantage we can use it here too, in France, because the male and female plugs are versatile. Only flaw, already mentioned in previous reviews but not really prohibitive, the case tends to sag to the side under its weight when something is plugged into it (other than USB, of course). In conclusion, for a sightseeing trip, I would recommend this product because it performs its function, and its small size allows it to cram for example in a wash bag.