3G technology, or third-generation technology, refers to a set of standards for mobile telecommunications that enable faster data transmission and improved voice quality compared to previous generations. It allows users to access the internet, stream videos, and use applications on their mobile devices with greater efficiency. This technology supports various services, including video calls and mobile broadband, making it a significant advancement in mobile communication. 3G networks utilize different protocols, such as UMTS (Universal Mobile Telecommunications System) and CDMA2000, to enhance connectivity and user experience.