This bi-directional cable can be used with both 3.5mm audio-out and audio-in ports, allowing you to connect your AirPods Max to 3.5mm audio sources, or to connect your iPhone or iPad to speakers with 3.5mm audio ports. When connected to AirPods Max, this cable enables ultra-low latency on a par with the device’s built-in speakers for an optimal experience when gaming or creating content.