... readersupport change font,color,background,bookmark,listenning to music while reader,support multi lauguagesPicture support JPG,BMP,PNG,GIF,support rotate ... etc.Support OTG,external harddisc,camera,handset,U disc card reader,printer etcChargermini 2.5mm DC,DC 5V,3Aearphone/video3.5MM ...