Ultra HD 4K resolution is four times that of full HD producing brilliant clarity and vivid details that amaze, even when viewed up close With active HDR adapting scene by scene to deliver image Mastering with pinpoint picture reproduction, LG TVs can offer the best picture visuals no matter what the format This sound technology creates seven virtual channels which produce the multi channel Ultra Surround effect and your senses are surrounded by outstanding audio from all angles Alexa built-in; find information and control smart home devices by speaking into your LG Magic remote or use your Alexa devices (purchased separately) to control your TV with a simple voice command (Alexa available via update mid 2019)" To support the advanced picture processing required for bright, sharp images there are 4 cores of processing power available for a fast and powerful brain to make sure you have the best possible picture