I received one of our units back from a customer of ours abd the pic was completly destroyed. The location where the die is/was was all burned and such. It is suspected of being put in a mircowave oven. The PIC is a SMT version of the 16C57 and is operated from a 4-cell ni-cad battery pack, all mounted inside a high-impact ABS plastic case. The unit is a handheld device and designed for being bumped and banged around somewhat. I will get a picture of it, and post it to my website. Alan Nickerson