Cheap usb advance, Buy Quality usb sd speaker directly from China usb speakers for pc Suppliers: Bluetooth 2.1 Stereo Sound System Streaming Speakers With Subwoofer Hi-Fi Loud Speaker with SD Card, USB, AUX For Smartphones PC
SNR: ≥80dB Frequency response: 20HZ-20KHZ Adjust form: Pre-adjustment knob Separation: ≥40dB Box Size: Main: 300 * 270 * 190mm Deputy: 260 * 120 * 110mm Audio cable length: 100cm USB cable length: 100cm Audio input interface: 3.5mm audio port What\'s In Box: 1 subwoofer 2 satellite speakers 1 Audio cable 1 remote Control 1 Manual