It took a bit to get this little gadget to work, but once I found workarounds for the glitches I was able to clone one Baofeng to another in about a minute. The main glitch was that the app would crash if it does not see both a TX and RX frequency. I had some weather channels on the unit I was cloning, that did not have TX frequencies, which caused the app to fail. Once I stuck 146.52 into the TX fields it worked like a charm. This programmer sells on Amazon for about $13 and is made by TidRadio. I'm pretty new to the whole Ham/YouTube world, so any comments or criticism is welcome.