Feature:1. Small and portable, suitable for use at the cash register, mini size does not occupy the desktop, plug and play, easy to carry out and use.2. The sound quality is better, the desktop computer speakers can amplify the notebook sound, and the stereo gives you a different audio?visual enjoyment.3. Easy to use, built?in USB sound card decoding, directly through the USB interface, you can play music without an audio cable.4. Rare earth true magnetism, high?quality speakers, good speakers can make music play smoothly, and the sound quality is pure.5. Sturdy and durable, made of high?quality ABS material, long service life, not easy to be damaged.How to Use:Directly plug into the computer equipment, the built?in sound card does not require a driver.Specification:Item Type: Portable SpeakerMaterial: ABSProduct Size: Approx. 9.6x3x4.8cm / 3.8x1.2x1.9inInput Voltage: USB 5VOutput Power: 3WPower Interface: USB interfaceCharging Cable Length: Approx. 69cm / 27.2inSignal to Noise Ratio: ?75dBFrequency Response Range: 40Hz-20KHz Package List:1 xPortable SpeakerNote:1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.