The Sony WLA-NS7 Wireless Transmitter is designed for BRAVIA XRâ„¢ TVs and selected Sony headphones, offering a personalized, immersive Dolby Atmos experience. It optimizes the sound field to your ear shape using the 360 Spatial Sound Personalizer. To set up, connect the transmitter to the optical and USB ports of your BRAVIA XR TV. Compatible headphones include WH-1000XM3, WF-1000XM3, WI-1000XM2, WH-1000XM4, WF-1000XM4, WH-XB900N, WH-XB700, WF-C500, WF-XB700, WH-XB90N, and WH-H910N (as of 01.09.2021, check local Sony website for updates). The connector type is s/pdif and the color is black.