Digital and Electronic Device Design Tria Set Top Box Digital video broadcasting device by Vestel ID Team Tria is one of the newest Smart Set Top Box of Vestel providing digital broadcasting technology for TV users. Tria's the most important character is "hidden ventilation". Hidden ventilation makes possible to create unique and simple designs. However, inside plastic cover there has a metal case which is used to prevent overheating of the product. Other technical features of the box are; it provides full technological functions such as playing different media (music, video, photo) via internet and personal media storages. Tria's operating system is Android V4.2 Jelly Bean system. Moreover Tria's specifications are; integrated WiFi 802.11 b/g/n/ac, integrated Bluetooth V4.0, Lan, SPDIF, O/B power supply unit, WPS button, WMM and Miracast. Apart from watching the digital channels in HD quality, by HDMI V1.4 connection, one can listen to music, watch movies and look at photographs and images on TV screen, while controlling these files through UI menu. Speaking of last Tria has 2 USB port and AV out. All of these features ensure a pleasant home entertainment experience for end user, which also upgrades a standard TV from a display to a home entertainment system.