Delta Air Lines is promising improvements to its in-flight tech, with higher-resolution screens, better Bluetooth access and a new partnership with YouTube.

Delta Air Lines announced plans to install new 4K HDR QLED screens in its commercial airplanes, so passengers can experience ultra high-definition entertainment at ultra-high altitudes.

While the airline’s centennial celebrations and new partnerships—such as those with YouTube and Uber—were noteworthy, the real star of the show was the introduction of ultra-high-definition 4K screens that promise to transform passengers' experience at 30,000 feet.