Got the PCBs yesterday. I ended up adding a bodge cap on the bottom on the noise reduction pin. Not sure if it will do much since it is battery powered. Since I have no standard to compare to, this is now the official 5v standard of my household. I have the parts to build up one more just to make sure I didn't get a bum chip. Battery should last about 12 hrs, but I made sure it was easy to change. I'm happy with the product! Pics below.