Aketek Upgraded K10 LED Mini Portable Projector Pico Projector Cinema Theater PC & Laptop With HDMI TV Interface -Black The item can be directly connected to a TV set-top box(STB) to watch TV, read SD card,or device with USB. Manual focus adjusting, get picture from 20-60 inches. Easy changing in 16:9 and 4:3 aspect ratio Multi-function interface: TV ,AV, VGA,SD,USB,HDMI; The professional appearance design for ventilation has largely improved the stability and life time for the projector