can you use this with a rear projection screen? Is there an option to flip the screen 180 horizontally?

I haven't found an option to do this, you may have to contact Anker about this. It won't project short-throw to a rear projection screen as I believe the minimum distance from projector to screen is about 6 feet.

I have 3d glasses with emitter (optoma zf2300 3d glass with emitter). do they work with this projector?

Cosmos Laser 4K only supports DLP-Link Active Shutter 3D glasses.

Is the hdmi arc supported ? can the hdmi be connected to soundbar

The HDMI Arc is supported. You can connect the Soundbar to the Cosmos laser projector via HDMI.

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Anker NEBULA Cosmos Laser 4K Projector, Portable Projector with 2200 ANSI Lumens, Android TV 10.0, Autofocus, Auto Keystone Correction, Screen Fit, Home Theater with Wi-Fi & Bluetooth

Anker NEBULA Cosmos Laser 4K Projector, Portable Projector with 2200 ANSI Lumens, Android TV 10.0, Autofocus, Auto Keystone Correction, Screen Fit, Home Theater with Wi-Fi & Bluetooth

Product ID: 432812745

Details

Brand
NEBULA
Connectivity technology
Bluetooth
Display resolution
3840 x 2160
Display resolution maximum
3840 x 2160
Display type
Laser
Form factor
Portable

💡2200 ANSI Lumens brightness

📺True 4K UHD resolution

🔧Auto Keystone & Autofocus

Description

🎬 Light up your life with 4K brilliance—wherever, whenever.

IMMERSIVE SOUNDSTAGE - Dual 10W speakers and 5W tweeters deliver rich, room-filling audio that pulls you into every scene.
PORTABLE HOME THEATER - Ergonomic handle lets you carry cinematic 4K anywhere—from bedroom to backyard movie nights.
EFFORTLESS SETUP MAGIC - Auto Keystone Correction & Autofocus adapt instantly to your space—no fiddling, just watch.
CINEMA GRADE BRILLIANCE - Experience ultra-bright 2200 ANSI lumens that keep your screen vivid even with lights on.
LIMITLESS STREAMING UNIVERSE - Android TV 10.0 unlocks 7,000+ apps and 400,000+ titles—your binge-watch game just leveled up.

The Anker NEBULA Cosmos Laser 4K Projector delivers stunning 4K UHD visuals powered by 2200 ANSI lumens brightness, ensuring vibrant images even in well-lit rooms. Its intelligent auto keystone correction and autofocus technology guarantee a hassle-free setup tailored to your environment. Designed for portability with an ergonomic handle, it transforms any space into a premium home theater. Running Android TV 10.0, it offers access to thousands of apps and hundreds of thousands of movies and shows. Complemented by dual 10W speakers and 5W tweeters, it provides immersive sound to match its cinematic picture quality.

Specifications

ASIN	B09BJM4BZQ
Antenna Location	Home Theater, Occasional Outdoor Events
Average Life Span	30000 Hours
Best Sellers Rank	55,353 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 597 in Projectors
Box Contents	User Manual, NEBULA Cosmos Laser 4K, Dongle, Battery, Remote
Brand	NEBULA
Brand Name	NEBULA
Brightness	2200 lumen
Colour	Black+Gray
Compatible Devices	Smartphone
Connectivity technology	Bluetooth, Wi-Fi
Contrast Ratio	1000:1 or higher
Control Method	Touch
Controller Type	Button Control
Customer Reviews	4.3 out of 5 stars 79 Reviews
Display Type	Laser
Display resolution	3840 x 2160
Display resolution maximum	3840 x 2160
Form Factor	Portable
Hardware Connectivity	Bluetooth
Item Dimensions L x W x H	16.6L x 22W x 26.3H centimetres
Item Weight	4.85 kg
Lamp Wattage	10 Watts
Manufacturer	Anker
Manufacturer Part Number	D23502F1
Maximum Display Resolution	3840 x 2160
Maximum Image Size	150 Inches
Maximum Throw Distance	4.22 Metres
Minimum Image Size	150 Inches
Minimum Throw Distance	1.68 Metres
Model Name	Cosmos Laser
Model Number	D2350
Mounting Type	Tabletop Mount
Native Resolution	3840 x 2160
Network Connectivity Technology	Bluetooth, Wi-Fi
Number of Items	1
Picture Quality Enhancement Technology	Laser Forge
Product Features	Portable
Projector Maximum White Brightness	2200 ANSI Lumens
Recommended uses for product	Home Theater, Occasional Outdoor Events
Special feature	Portable
UPC	194644079192
Unit Count	1.0 count
Video Encoding	Either H.265 or VP9
Wattage	30 watts

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