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3M CP45R Generation II Projector Camcorder Can show images from composite video sources, internal 2 GB memory, or microSD card. Although it can download images from computers to show them from internal memory, it can't show images directly from a computer

The 3M CP45R Generation Projector Camcorder has a built-in camcorder that can show images from external video sources or from memory, including video and photos it takes itself. 3M manufactures projectors rather than cameras, and the camcorder side has more in common with camera phones than full fledged camcorders, treating it as a projector makes more sense. As a projector, the CP45 has less in common with 3M's other pico projectors. if you want to use the CP45 for business is that you can still use it for presentations. One choice is to save the presentation as a set of JPG files and then move the files to the projector. You can move them on a microSD or microSDHC card or by connecting to a computer using the supplied USB cable, letting the computer recognize the CP45's memory as a USB drive, and then copying the files. You can also connect by USB cable to copy video and photo files from CP45 to your computer.

A second choice for Windows is to use the included customized version of ArcSoft MediaConverter 3 to covert PowerPoint slides into movies. Not so incidentally, MediaConverter can also convert most video file formats on your computer to a format the CP45 can play. Projector (and Camcorder) Basics
The CP45 offers SVGA (800 by 600) native resolution, and a red-green-blue LED light source rated at 20,000 hours and meant to last the life of the projector. By definition, as a pico projector, it's small and light enough to fit in a shirt pocket, at 0.95 by 2.0 by 4.9 inches (HWD) and just 7 ounces.
The physical design is suitably slick, with a shiny white case and your choice of a red or black highlight. The front is defined by the projector lens. The top includes a 2.4-inch LCD display that you can use as a monitor while taking photos and video and also use as a display for playback if you'd rather not use the projector. The control panel, for both the projector and camcorder functions, is below the LCD, and surprisingly easy to use. The right side includes a thumbwheel focus control, microSD card slot, and power switch. The camera lens and tripod socket are on the bottom. The USB port on the left side doubles as a power connector, letting you charge the unit while it's connected to your computer or plugged into a power outlet with the included power adaptor. The only other connectors are a mini HDMI port and a mini-plug jack.

Note that the HDMI port is for output only. The Camcorder takes videos at up to 720p (1280 by 720) resolution, which is well above the projector resolution. The HDMI port lets you connect to, say, an HDTV, so you can play back the image at full resolution. The single mini-plug is for both audio output and composite video input using the supplied cable with RCA phono connectors for video and stereo audio. Unfortunately, having one connector for both functions can be a problem. As with most pico projectors, the built-in audio offers far too little volume to be useful, so you'll usually want to use a headset or external sound system. With an external source already plugged into the AV jack, however, there's no place left to plug in, which means you'll have to bypass the projector's AV input and connect the sound system directly to the source.