... Device: 4GB NAND Flash, can use external 250GB Portable HDD &16GB SD Card (optional: 8GB / 16GB MOQ 10PCS )- Support ... Audio / Build-in stereo speaker&Microphone- Port:USB Port: USB 2.0*2, RJ45port*1, HDIM Port* ... Keyboard, Wifi, WLAN, Camera, all Card Slot and USB Slot, G-Sensor, Bluetooth, Microphone, Speaker, GPS, ... for all our products, 2 years for USB flash drive. Please contact me if you need ...