Wow. An affordable product that gets the job done right the first time. I've been using them for a year, they've been in a variety of bags, trips and climates and they still work with no issues. Very impressive. Just remember that if you try to find answers to the problems these adapters are designed to solve, you can open up a whole new set of problems. For example, plugging a USB-powered snowball microphone into a cell phone charging port. Technically yes, it works. But it uses so much power that your phone will go from 100% to 0% in 60-120 minutes depending on the age and capacity of your battery.