Purchased new in May 2025. Used for a short period (lamp usage time: 173h) and ceiling-mounted. It is a beautiful item with no noticeable scratches or stains. Naturally, there are no problems with operation or connectivity. I am selling it because I am replacing my equipment. Android TV, original box, bag, and quick start guide are included. Despite being in this price range, it boasts a brightness of 4000 lumens, allowing you to watch even during the day without curtains, as long as there is no direct sunlight. Recommended for those new to 4K projectors. *Remote control is also included (image added)* Brand: Acer Recommended Uses: Business, Education Features: Built-in Speakers Connectivity Technology: HDMI Display Resolution: 3840 x 2160 Maximum Display Resolution: 3840 x 2160 pixels Android TV box included Projection Method: DLP Pixel Count: 4K UHD (3840×2160) Computer Input Supported Resolutions: 4K UHD, WUXGA, 1080p, WSXGA+, WXGA+, WXGA, UXGA, SXGA+, SXGA, XGA, SVGA, VGA Brightness (Lumens): 4000 ANSI lm (Standard), 2600 ANSI lm (ECO mode) Additional Product Description 1: Built-in Speakers Communication/Connection Interface: HDMI Native Resolution: 3840 x 2160 Maximum Display Resolution: 3840 x 2160 pixels Display Type: DLP Form Factor: Desktop Color: White Wattage: 10 W Maximum Projection Distance: 10 meters Control Method: Remote Minimum Projection Distance: 1 meter Features: 4K