Transform any space into your own personal theatre with the Sony BRAVIA Theatre U wearable neckband speaker. With Sony's 360 Spatial Sound Personalizer technology, this Bluetooth speaker lets you enjoy true surround sound wherever you go. It boasts upward-facing X-Balanced Speaker Unit to ensure crystal-clear sound quality, and works up to 12 hours on a single charge. | Sony BRAVIA Theatre U Wireless Wearable Neckband Speaker