Tronsmart 181780 R28 Pro RK3288 Quad Core TV Box 2.0GHz Android 4.4 2G/16G 2.4G/5G Wi-Fi Bluetooth 4K OTA OTG Tronsmart Orion R28-pro use Broadcom AP6335 Wi-Fi module, support 802.11b/g/g 2.4Ghz. and IEEE 802.11a/b/g/n/ac 5.8Ghz. With the ultrafast 2.4Ghz Wi-Fi connection, you can stream high definition media with speed and stability. Orion R28 embedded with BT 4.0 module, it can save more power consumption and the transfer distance can be over 100 meters, and supports AES-128 coding. It is compatible with 2.0,2.1 and 3.0 all BT standards. Orion R28 streams your video/music/photo from your Android / IOS devices through DLNA/Airplay/Mira cast, allows users to screen cast through supported devices onto HDTV with big screen. Enjoy the best gaming and entertainment experiences. CPU: RK3288 1.8GHz; GPU: Quad Core Mali-T764 GPU; Ram: DDR3 2GB; Rom: Onboard NAND Flash 8G Bored by the updating instructions, stock firmware, updating tools etc. Tronsmart offer OTA (over the air update) service for the Orion R28, you can always keep your Orion R28 updated.