Acer K138ST Projector
Another feature of the K138ST is its short throw projection feature. Thanks to that, we could easily keep the projector less than two feet from a wall, and it also means that we didn’t need an entire table situated in the middle of the living room to project our content. Connectivity-wise, the K138ST comes with an AV cable (for legacy devices), but like so many other modern projectors on the market, it has an HDMI port for connecting your notebook, desktop PC, or a mobile device via MHL. You’d think it would end there, but no: this projector is also fitted with a built-in speaker capable of DTS sound.
On a side note, the K138ST is also able to project 3D content, but you’ll need a compatible DLP 3D active shutter glasses to play back 3D stereoscopic videos and images.
Perhaps the most impressive factor of the K138ST lies within the way it disperses heat. As we all know, projectors are notorious for being a device that heats up, but throughout our testing, the projector rarely heated up to the point that we would usually have to shut it down in order to prevent overheating.
Overall image quality of the K138ST was pretty clear and easily distinguishable. However, details started to become fuzzy the moment we pulled the projector back about three feet from the projection source.