Buy on Amazon : br Aketek Newest Upgraded K10 LED Mini Portable Projector Pico Home Projector Cinema Theater PCbr br The item can be directly connected to a TV set-top boxSTB to watch TV read SD cardor device with USB br Manual focus adjusting get picture from 20-60 inches br Easy changing in 169 and 43 aspect ratio br Multi-function interface TV AV VGASDUSBHDMI br The professional appearance design for ventilation has largely improved the stability and life time for the projector