Detailed Product Description 5 inch E-ink touch screen displayProduct size: 152 ... and frequency upto 400MHz3.5mm earphone port and 2.0 mini USB portSupports T-flash/Micro SD card ... up to 16GBSupports Bluetooth 2.0 Supports FM/wifiBuilt-in dual stereo speakers ... Built-in Nand flash 128MBBuilt-in Motion sensorSupports File format: TXT, HTML, FB2,FDB, PDF,EPUB,RTF,CHMSupports ...