A couple of weeks ago I mentioned in 150712 MMDigest that I was looking
for a pair of wireless MIDI units.  One source mentioned Panda "midiBeam"
units, manufactured by Elektromedia Ltd.  Visit  http://pandamidi.com/ 
and  http://www.panda-audio.com/midibeam.php 

I ordered a set of those and they arrived today (after two weeks).  The
transmit unit has an on/off switch and is powered by size AA batteries.
The receive unit is powered by 5 volts via a mini-USB connector.  I used
a phone charger for that side.

The system worked very well at 50 feet.  I did not try beyond that
distance.  The cost for the pair was 144 euros.

Thanks to all who responded.

Max Huff
Houston, Texas

 [ The software design is by Zoltan Janosy, who is one of our earliest
 [ MMD authors.  In 1994 he and musicologist Janos Macsai built one
 [ of the first optical music roll transcribing (scanning) systems.
 [ They adapted a drum-type facsimile machine to transcribe Welte
 [ music roll performances by Hungarian pianists Bela Bartok and
 [ Ernest von Dohnanyi, among others.  Their MMD articles are indexed
 [ at http://www.mmdigest.com/Archives/Authors/Aut34.html  and
 [ http://www.mmdigest.com/Archives/Authors/Aut35.html  -- Robbie