Upgraded to Bluetooth 5.0, featuring robust signal transmission and low-power operation, all for an enhanced audio experience Be careful about every detail on the space, ability is in so cabinet size, achieve the optimal balance of sound quality and sound cavity, bring purer, full, resonant timbre Featured super bass gives you high fidelity music enjoyment. Fully equipped custom-made high performance 3W neodymium driver, surprisingly loud with well-balanced sound Big power with small volume, redefine the super bass concept, the speaker comes equipped a downward passive radiator You can connect two speakers wirelessly to create a stereo sound system, achieving left and right channel playback for a more immersive stereo music experience Specifications: Bluetooth Version: 5.0 Casing Material: Metal Dimensions: 62x63x64.5mm Charging Duration: Approximately 2.0h Playback Duration: Approximately 4.0h (at 70 percent volume) Bluetooth Transmission Range: Approximately 10m within range Battery Capacity: 3.7V or 600mAh Charging Port: TYPE-C