Bldrums,

I had exactly the same problem (the beeping problem). The controller beeped from day one, even with brand new batteries. If I pressed on the controller near the on/off switch, I could usually get it to go away. A fellow Stryker buddy of mine who is an electrical engineer told me I likely had a bad solder joint in the transmitter. It never caused any problems for me, but it was very distracting to have the beep going off while I was flying. I just made sure that I had good batteries when I flew it. I bought another used Stryker with the same channel off of Ebay and used the new transmitter, so that I wouldn't have to deal with the annoying beep. I'm sure it could befixed with a little electronics expertise.

Hope this helps. Watsonthecat