Dangbei Atom Portable Laser Projector, 1200 ISO Lumens, 3D Ready, Official Netflix, 1080p HD with 4K HDR Input, 180" Display, HDR10, 2x5W Dolby Audio, Home Theater Projector with WiFi and BluetoothClimatePartner certified

This is the best projector that I have ever had. The automatic focus feature is neat. The images are bright and clear and saturated and in focus across the entire screen for both text and movies. There is no laser speckle. I could do work on the projected screen as an external monitor. I recommend getting a camera tripod that is about 3 feet or 1 meter high. You might also want to buy a projector screen if you do not have one, because a projector screen is not included. I purchased the Dangbei Atom projector and Dangbei 3D glasses combination. The package includes 2 AAA batteries that you have to put in the remote control by sliding down the back of the remote control about 3 millimeters and then pulling the back of the remote control off to reveal the battery compartment. The 3D movie viewing experience, once you get it working, is better than using the PlayStation VR headset on the PlayStation 4. Unlike the PlayStation VR headset, there are no screen door video artifacts when you view 3D images projected by the Dangbei Atom projector. That PlayStation VR headset is heavy and squeezes my head like a vise while the Dangbei 3D glasses are comfortable and light and feel like a pair of sunglasses. The only downside is the totally unintuitive multi-step process for viewing 3D videos or movies. You have to first charge your 3D glasses by plugging the small end of the USB cable under the nose piece and plugging the bigger end into a powered USB A port in a computer, a powered USB hub, or a USB AC adapter. The light in the white button on the 3D glasses will be red at first and will eventually go off when it is fully charged. After the glasses are charged, you press the white button on the glasses once to turn it on. You hold down the button for 3 seconds or so to make the button blink 3 times and turn the 3D glasses off. The glasses also seem to turn off automatically if they do not see a 3D image for a while. You have to hold down the Home (white house) button on the right side of the remote control, navigate to Projector / Image Correction / Reset to Default Image. You can then press the white left arrow button until you exit the menus. I don't understand why the user has to do this. This should be done automatically for the user any time they attempt to activate the 3D setting. You make selections by pressing the center depression of the circular control on the remote control that lets you move up, down, left, or right in the menu. Dangbei also recommends holding down the Home button, selecting the cog symbol to enter the settings menu, selecting Projector / Focus / Advanced / Auto Focus When Moving. This will turn off Auto Focus When Moving. The selection is off when it is white to the left instead of blue to the right. The presence of the 3D mode option in the Home / Picture menu gave me the incorrect impression that I had to set 3D mode first before viewing a 3D video or movie. I was wondering why the 3D mode setting selection that I made in the menu never worked and kept changing back to Off. Instead, what you have to do is start to view the 3D video or movie first. When you see double images side by side or one image on top of another, you have to hold down the Home button that has a white house symbol on the button. That will then reveal a menu on the right side of the screen where you can select the Picture menu option and scroll almost all the way down to select the 3D mode. There are 3 options for turning on 3D mode where the images are on top of each other, side to side, or coming from a Blu-Ray player (such as a PlayStation 4 connected to the projector via an HDMI cable). After changing the 3D mode, you have to press twice the button that has the white arrow pointing to the left on the remote control. The Dangbei video on YouTube does not seem to show this last part, which is necessary or your 3D mode selection will return to Off. The PlayStation 4 requires some changes on the PlayStation 4's menu on the far right side for Settings / Sound and Screen / Video Output Settings / TV Size to specify the size of the projected screen. If you are off by 1 inch, the 3D image might not look right, as if you were crossing your eyes. For some scenes, I have to select 80 inches, and for other scenes, I have to select 81 inches. When you go back to viewing the video or movie after selecting the screen size, the 3D mode will be Off again, so you have to go through the process of holding down the Home button on the remote control, going into Picture, and selecting the 3D mode again after each try of adjusting the screen size in the PlayStation 4 settings. That is a really tedious and time-consuming process of trial and error. The reward is a clear 3D image.

Normal movies are excellent on this at 100 inches. I normally use it on laser power 7 for these. Google tv on it is snappy, runs perfect. Some things like switching to hdmi, require too many presses in the menus. I pack it for my charity work in a small ibm bag for one of their old mini projectors. The bag just holds projector, mini tripod,and psu, and remote.I use the 3D feature for charity work on laser power 9 and the image is bright, with an excellent 3D effect, on 70 inch pull downs in most community rooms, or rec centers. It is slightly dimmer at 100 inches, but still watchable, especially on old 3D films like House of Wax, Creature from the black lagoon, Dial M for murder, etc. The creators of the old 3D films knew to brighten and use proper contrast, because the glasses sap brightness. It takes DLP Dlink active shutter glasses, they are not cheap. The AWOL ones work excellent. You will not realistically sit more than 6 or seven people for optimal 3d viewing.Disney Marvel movies are watchable, but in many scenes were dim, and overly filtered even in 2d on brighter projectors than the atom. They are watchable, but the 3D is dimmer, and the effects are more poorly done than the dedicated to 3D shots of the older movies. But when does Disney ever do things right… no pride in their work, only their parades. Honestly I think they make their 3D movies dark on purpose to price out smaller theaters on the price of a brighter projector. They are not nice people.No battery power, and the in built speaker is clear, but could be louder. It has BT and hdmi arc.The projector is a brick, if you bring it somewhere and forget the remote.Sometimes it hangs on the start screen and you have to do a complete reboot to reset it so you can enter the pin, also if you have no wifi connection you cannot get into the projector if you set a pin. Luckily I have a hotspot on my phone, otherwise backyard movie nights with an hdmi source could not be done. i have no idea, why the pin could not be encrypted and saved locally like everything else does. It is a major pain.Five out of five for the money. You will take it places.

An impressive small form-factor projector that runs on DC power. Yes, 100% you can power this from a sufficient USB-PD battery bank with a PD trigger. The barrel jack is a weird dell style. But there are videos out there that describe the stuff you'd use.The picture is bright and clear, I really like the auto keystone adjustment and focus.From what I understand it's a 1.2:1 projection ratio, so to figure out the relative screen size you'll get, multiply the distance from the screen to the projector by 1.2. if you're using it at an angle, you'll lose some screen size due to the soft-keystoning. (Keystone correction is not optical, it is image distortion based).I considered deducting a star for this last part but decided it's more an issue of my use-case being weird. This unit uses an upward-ish firing projection. That is to say, if you place it on a level table, the bottom of the projected screen will line up with the bottom of the lens, and the top of the screen will be much higher. If you are installing the projector above head height, you'll either have to angle it funny (and deal with keystoning), or turn it upside down. This is probably not a problem for most people and how they'd use it.Lastly, if you want an interruption free viewing experience, be sure to run it for a few minutes before you decided to actually relax and use it, so that any software updates happen first. The Google TV stuff will annoyingly close out whatever app you're using while you're using it to do updates, without asking.