Parlorscope Battery Handle

This is a thread-on handle for your Mercury viewer (any model).  It enables you to comfortably handhold and pass around your viewer, conveniently wraps your power cable and switch, and acts as a high-capacity lithium-ion battery back to power your viewer.  Just plug your viewer's USB power cable into the bottom for many hours of power!  Add-on for existing Viewer order (or Kickstarter).