The USB DVB-T Hybrid is a USB TV tuner device that allows a computer to receive digital TV signals, specifically DVB-T (Digital Video Broadcasting - Terrestrial), which is a standard for terrestrial (over-the-air) broadcast television in many parts of the world. The Hybrid part of the name typically means that the device may support both DVB-T and DVB-T2 signals, which are common for digital TV broadcasts, and sometimes even support other features like analog TV or radio.
To make this USB DVB-T Hybrid device work on your Windows system, you need to install the appropriate Windows driver, which allows the device to interface with your operating system and communicate with compatible TV viewing software.