AIRIS G819 is a DVB-T USB device that allows you to watch and record digital terrestrial television (DVB-T) on your computer. It includes a portable antenna and a remote control for easy operation. To use the device, you need to install the included driver and software on your computer. Once installed, you can connect the device to your computer's USB port and the antenna to the device. The device supports a variety of features, including:

• Watching and recording DVB-T TV
• Listening to FM radio (with a radio device)
• Watching video clips
• Setting up software parameters

The device comes with Cyberlink Power Cinema software, which provides a user-friendly interface for controlling the device and accessing its features. The software includes a setup wizard that will guide you through the process of scanning for TV channels and setting up the device.