I was reminded that I needed to do something to make sure that the Driver and Battery were insulated from the wearers sweat. I had already thought about putting the driver and battery into the Ears, but was unsure how to separate those compartments from the wearer.... then it occurred to me that it was real easy to do with a flat piece of rubber! Heres what the result will look like, the Driver and the Batteries will be accessable through slots on the back of the ears, while everything is safely sealed off from the wearers sweat. After getting the battery holder and some disconnects for the wires, I'll be then permanantly gluing this bit into place.