The key characteristics of 4th Generation Wireless Technology (4G) include high data transmission speeds, improved network capacity, lower latency, and advanced multimedia capabilities. 4G provides faster internet access compared to its predecessors, enabling seamless streaming of videos and real-time online gaming. It utilizes technologies like Long Term Evolution (LTE) and offers enhanced support for mobile broadband operations. Additionally, 4G networks support a more extensive range of devices and allow for more simultaneous connections, making them ideal for modern mobile communication.