This is an easy-to-use ultra-short-throw projector. The lamp has hardly been used. I think it's in near-new condition. Specifications ● Permanently installed, turning your usual blackboard into an electronic whiteboard instantly. ● Designed for pen-like ease of use, achieving a thinness similar to a ballpoint pen. ● Simultaneous writing with two pens is possible, with excellent responsiveness. ● Built-in 16W stereo speakers for powerful sound. ● Ultra-short throw allows projection onto a large screen up to 100 inches. ● Includes a remote control. Product Specifications Brightness: 2800 lumens Resolution: WXGA External Dimensions: W357 x D367 x H135 Weight: 7.5kg Contrast Ratio: 3000:1 Built-in Speakers: Stereo 16W (8W x 2) Projection Screen Size: 70 inches (from mirror: 51.7cm) / 100 inches (from mirror: 75.9 cm) Inputs: NTSC, PAL, SECAM, VGA, HDMI, composite