CX-921 US Plug Rockchip Quad Core RK3188 Cortex A9 1.6 GHz Android 4.2.2 OS Mini TV BOX 2G/8G AV Output Built in MIC Black Support AV Output, Built-in MIC 2G DDR3 + 8G Nand flash Support 802.11 b/g/n, Built-in Realtek 8188 WiFi Module Rockchip RK3188 Quad Core ARM Cortex A9 1.6 GHz, 4 x mali 400 GPU Android 4.2.2 OS, with 2.4G wireless mouse/keyboard