--Small screen to large screen, no APP, no power supply.
--Up to 1080P high-definition format can be mirrored and displayed on the equipped HDTV.
--The USB OTG port can support USB external devices such as mouse, keyboard, U disk, network card, sound card, etc.
--USB card reader U disk supports direct import and export of pictures and videos (two-way transmission).
--Product size: 53×32×10mm (L * W * H).