The Aaxa P1 Jr. hand-held LCoS pico projector (10 lumens) was specifically chosen because of the array of multiple features in relation to its affordability. The unit is quite small. There is a slide show feature, SD-HC card reader. Inputs/outputs include mini- USB, composite A/V capabilities. These features make it ideal for mobility and flexibility while in the field. Another motivation to include the Aaxa P1 Jr., was that should the device break or fail due to weather or other natural conditions the expense associated with the loss would be small. The Tunebug Portable SurfaceSound™ Vibe speaker was chosen because it is compact and can turn any surface into a playback source.