Feature: 1. Convenience: one USB connection (including power supply and audio input), no need audio cable, very convenient. 2. Simple: small and compact, placed on the desktop does not occupy space. 3. Universal: plug and play, applicable to a variety of devices, built-in sound card decoding (computer sound card connection is available). 4. USB sound card decoding speaker: rare earth true magnetic high-quality dual speakers, stereo 3D makes music play smoothly and sound quality pure. 5. Wide Application: it is mainly used for desktop computer / notebook / Cashier and other equipment to expand and improve sound quality. Specification: Features: Convenience: one USB connection (including power supply and audio input), no need audio cable, very convenient. Simple: small and compact, placed on the desktop does not occupy space. Universal: plug and play, applicable to a variety of devices, built-in sound card decoding (computer sound card connection is available). USB sound card decoding speaker: rare earth true magnetic high-quality dual speakers, stereo 3D makes music play smoothly and sound quality pure. Wide Application: it is mainly used for desktop computer / notebook / Cashier and other equipment to expand and improve sound quality. Specifications: Material: PP Output Power: 3W Power Supply: USB power supply Interface Type: USB interface Audio Input: USB sound card decoding Signal to Noise Ratio: ≥80dB Frequency Response Range: 40Hz~20KHz Item Size: 183 * 47 * 37mm / 7.20 * 1.85 * 1.46in Item Weight: 200g / 7.05oz Package Weight: 300g / 10.58oz Package Size: 19 * 5.5 * 4.5cm / 7.48 * 2.17 * 1.77in Packing List: 1 * Computer Speaker Package List: 1 * Computer Speaker