D Surround Sound: The Bluetooth Speaker Comes with true stereo sound with deep bass, crisp highs, and a robust mix of middle and bass is yours with TWS, which makes it easy to link up two wireless speakers for 3D surround sound. An immersive experience creates a dynamic musical atmosphere. Bluetooth 5.1 Connectivity: The Portable Speaker has improved connection stability and a 10-meter range are features of Bluetooth 5.1, which is compatible with all Bluetooth devices and smartphones. Incredible 3D HiFi Bass: The Bluetooth Speaker comes in Stunning 3D stereo sound which is produced by the 8W speakers integrated inside the Bluetooth wireless speaker, and bass is enhanced by the bigger diaphragm iron.