Image & Display QualityNative 1080p Resolution: Unlike many low-cost projectors that only project at 480p or 720p, the P21 features a true native resolution of 1920 x 1080 pixels. It also supports 4K source input, scaling the image down cleanly without compatibility issues. High Contrast Ratio: It features a 8000:1 contrast ratio, helping to separate deep blacks from bright whites for a more immersive cinematic feel. Massive Screen Capability: The optics allow you to project an image anywhere from 50 inches up to 300 inches. For optimal clarity and brightness, the sweet spot is typically around 80 to 120 inches at a distance of roughly 3 meters (10 feet)

Audio & Internal FeaturesDual 5W Stereo Speakers: The projector has two built-in 5W speakers that provide decent, clear onboard audio for small rooms. For a true theater experience, it includes a 3.5mm audio jack to easily hook up external soundbars or computer speakers. Digital Zoom & Focus: Using the remote control, you can digitally reduce the image size from 100% down to 75%. This is incredibly helpful if the projector is mounted to a wall or ceiling and you need to fit the image perfectly onto your screen without physically moving the unit. Manual Keystone Correction: Features a physical dial for ±15° vertical keystone adjustment to straighten out the image if the projector is tilted slightly upward or downward.