I developed a tour at a musuem in Hawaii that had part of the tour
outside...used Sony walkman style recorders with headsets made by
Antenna Audio Tours, and lost only one over several years.  The reason
for so few losses is that the units have a sealed nicad battery unlike a
normal walkman that can only be recharged in a special recharger that is
supplied by Antenna.  So, it would do no good to take the unit without
the ability to use it in the future.  A very good system that now uses a
CD player in the same manner.

Allan Palmer
Curator, San Diego Aerospace Museum

Kelly Ray wrote:
>
> I apologize for cross-postings...
>
> I am wondering if anyone has had experience with providing audio tours
> such that the users are free to roam in unsupervised areas, such as
> out-of-doors, where the visitor has the opportunity to walk away without
> returning the unit.  Is this done anywhere?  If so, how did you ensure
> that the units would be returned?  Was it effective?
>
> Thank you for your input!
>
> -Kelly
>
> @@@@@@@@@@@@@@@@@@@@@@@@@@@
> Kelly Ray
> Research Assistant
> Challenger Center for Space Science Education
> 1029 North Royal Street, Suite 300
> Alexandria, VA  22314
>
> phone:  703/683-9740
> fax:  703/683-7546
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