Review on Silent Pure Sine Wave Voltage Converter Combo: International Travel Power Adapter, Step Down 220v to 110v - Worldwide Plug Adapter EU/AU/UK/US Included for Hair Straightener, Curling Iron by Deshaun Fisher

I haven't done it internationally yet so can't talk about converting 220 to 110 but let's be honest... how a lot of the items you own today aren't actually rated for multiple voltages anymore? Every computer, camera and charger I've seen is like this, but if you have something for only 110 to take to Europe...cool! Other reviews called it great; it's quite thick, but only as wide and long as an iPhone X (see photo). I wish it had more than two outlets because then you really only get one outlet (one becomes two), but of course you get all the USB chargers too. If you're traveling with a laptop, phone, and tablet, this might be a good way to plug them all into the same hotel outlet. What I'm really interested in is how the "sine wave" conversion works. Whenever I plug my MacBook Pro into a 220V outlet, I feel electronic vibrations through the metal casing! This has been happening with various computers and chargers for years; Maybe it's just my electric personality, but I'm pretty sure even the Apple power adapters sold in the US aren't that great. So I really want to try it and will update after my next international trip. The last thing I would like to point out is that it comes with a standard European two-pronged bullet connector on the cord, as well as three adapters for the UK, US and Australia. If you don't need them, you can leave them and save space.