These charging cubes are great. The fact that there are two means you can leave one at home, and use one at the office. I throw one in my purse since they're small and portable, and they're great to travel with. The charge seems to last longer and also they charge pretty quickly. Some other charging cubes that I've seen don't seem well made, and you have to really work to get them to stay plugged in. Not these - they have a nice, tight fit both plugged into the wall and into my devices. If you're looking for a budget friendly, yet superlative product for charging, you won't be disappointed with these.