Resolution 4k. 4K Ultra-HD & Multi-Output： Play videos (MKV/AVI/PPT), music (MP3/WAV), photos from USB/Micro SD on any TV (old/new), monitor or projector via HDMI (4K@30Hz, 7.1 surround sound). Durable Design & Extra Features： Zinc/aluminum casing for efficient heat dissipation; external IR port.