1The middle part is specially equipped with a woofer, and the left and right are equipped with a sound horn. The sound is clear and more explosive, making you feel like you are in the music scene. 2Compact and simple body, with humanized anti-slip mat design, just matching with all types of computers, saving desktop space. 3Upgraded ground-supercharged subwoofer, 2.1 channels, the sound is more pleasant. 4Ergonomically designed, cool and special aircraft styling for a different visual experience. 5Built-in Bluetooth 5.0 chip, barrier-free connection distance within 10 meters. Item Type: Speaker Color: Silver / Black (Optional) Output Power: 3W Resolution: 40dB Frequency Response: 25Hz-20KHz Signal to Noise Ratio: 80dB Power Supply Voltage and Current: USB/DC5V 600mA Channel: 2.1 Product Size: Approx. 40 x 12 x 9cm / 15.7 x 4.7 x 3.5in Bluetooth: 5.0 border: .5pt solid000;};border: 1px solid000important;}Speaker x 1Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.