As anyone who travels abroad can attest, adapters are annoying. Hammacher Schlemer recognizes just how annoyed travelers get with its new 150-country smart adapter. The device automatically detects incoming voltage and converts it to 120-volt AC power. It also has plug adapters for 150 countries around the globe, as well as a built-in USB port–and it can even charge AC and USB simultaneously. It looks like a useful product for people who don’t want to carry dozens of chargers and plug adapters with them. The sensing mechanism is also helpful because even neighboring countries can have different electrical systems.