This is the king of powering your devices while traveling. This world power strip has 3 standard USA plugs and 4 USB chargers. This power strip comes with every adapter you will need for every country. The other key feature of this unit is the power strip function. This comes in very handy while you are in the airport and every plug is taken. I have this in my carry on. Just ask someone if you can share their outlet, and everyone gets charged. The other benefit is using this in a hotel room that has few plugs and you and your wife need to charge everything at once. This might be a little bigger than other units, but it’s worth the space.