Nacodex&reg; Original Xiaomi&reg; 3rd Xiaomi Mibox 4k Ultra Hd Android Internet Tv Box Airplay Dlna Miracast Jailbreakchinese Manual Feature: Xiaomi Mi Box ProThe 3rd Generation Mi Box from Xiaomi,2GHz Quad-Core A9 CPU & 6+2 CoreMali-450MP6 GPU.1GB Dual Channel DDR3 Memory,4GB eMMC Flash. 4K Video SupportResolution up to 3840x2160, 4K Video,4 times resolution then 1080p,Support HDMI 1.4 Standard. Dual Band 802.11ac WiFiSupport 2.4G/5G 802.11ac WiFi protocol,Downward compatible with 802.11 b/g/n. Much More FunSupport Bluetooth 4.0, Micro-SD Card Reader + USB Host,Dolby and DTS support & certified,SPDIF audio output,Google CTS Android 4.4 OS (Upgradeable).