Olympus LS-11 electrical specifications?

["David Michael" corticalsongs]

Hi

I was curious if anyone on list has an idea of the LS-11 electrical specs.
The manual gives battery life time without qualification of either the
battery used or the unit power requirements.

I see that the external power source is 5V, but what is the current
draw (amps)?
Or heck, if I had the watts, then I would be set - so basically I am
just missing one piece of information needed to calculate how long
external batteries will last  with this thing.
Any help is appreciated

David