Review on BESTEK Universal Travel Adapter - Worldwide Plug Adapter 220V to 110V Voltage Converter with 6A 4-Port USB Charging and UK/in/AU/US International Outlet Adapter (White) by Matt Watkins

We live in Hong Kong and wanted a large digital clock for our bedroom but the only clock we could find was a 120 volt American clock. We bought a converter to power our electric clock. The converter was easy to assemble and the Hong Kong adapters work perfectly. However, our clock seems to slip about 20 minutes a night. We don't know if this problem is with the converter or the clock. The converter comes with a nice travel bag and lots of plug adapters. The instructions say it can't be used with a hair dryer so we didn't try it. There are also a couple of USB ports for charging other electronic devices. It emits a slight buzz, but it's not distracting or audible unless you're nearby.