The SRS-NS7 is Sony's latest neck-band speaker. The Japanese giant touts this accessory as an alternative to headphones in a home-theater setting, with in-house speaker types and 360 Spatial Sound for immersive audio without the risk of headband fatigue. This latest offering also comes with a wireless transmitter for potentially reliable, low-latency connection to the TV in question.
https://www.notebookcheck.net/Sony-expands-its-neck-band-speaker-line-with-the-new-SRS-NS7.569983.0.html
I don't understand how Dolby atmos can get from optical port and through Bluetooth connection!?