... highest support 4096*4096 resolutionSpeakerspeakerInterfaceOTG digitalSupport Harddisk,digital Camera,Mobile,USB,card reader and able to connect printer ect OTG function ... HDMI1.3,support full screen output to HDMI DevicesUSBUSB2.0accessoriesCharger, USB cableChargingsmall type charging port,inpu DC5V 2AEarphone3.5mm earphone jack