Saber



The Saber is a hand cranked portable media player with high acoustical volume. For every minute of turning the handle, you should get several minutes of playing time with the Saber. This does vary, however, depending on the state of the batteries and how loud the Saber is playing.

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EZ-1

The EZ-1 is a mash-up of two separate products; eton's fr500 ad ZVUE's Elvis player. We are building these in our California office of OMPT.
Read an article product review by clicking here.
Read the instructions here.

*The EZ-1 works best with an external solar panel.

• Solar/play EZ-1 and an external solar panel has a 2.5/1 ratio (2.5 hours of solar charging provides 1 hour of playing)
• Crank/play EZ-1 has a 1/2.5 ( 24 minutes of crank charging provides 1 hour of playing)
• The ratio improves as battery charge increases from zero (typical charging curve)

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X-mini amplified speakers

The X-Mini is a tiny (pico) set of loudspeakers taht can be attatched to any portable media player. The X-Mini is recharged via a USB cable (5 volt) THey are very loud for their size.

The manufacturer of the  ZVUE Model 210 portable media player (above) is making hundreds of these available to non-profits interested in using portable media players.

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Mini Public Address System (MPA)

The MPA provides the highest level of acoustical volume. This system is very loud. The large speaker and powerful battery enable the MPA to serve up to 100 listeners.  It requires a large solar panel and it is not practical to recharge the batteries with a hand crank generator. The MPA is simply an amplified speaker and does not have a portable media player built in. The MPA can also be used with a microphone to amplify the voice of the teacher.

Desiree

In our first deployment (2007), we chose the 1 GB Nextar PMP which retails for $20 along with an external battery powered speaker which retails for $22 .

The PMP requires one AAA battery while the speaker has an internal  battery.

On cloudy days the batteries are recharged  with a Lenmar Pro78 which can be powered a small solar panel or powered by the Freecharge 12v hand crank.

Boomer  is much louder than the other systems, but also consumes battery power more quickly. It requires a larger solar panel and it is not be practical to recharge the batteries with a hand crank generator.

This portable media player is offered by JWIN. It is a classic BoomBox that also plays MP3 files from a USB drive or an SD card. The JWIN requires 8 C batteries.