Item Type: Portable Speaker_x000D_ Material: ABS_x000D_ Product Size: Approx. 9.6x3x4.8cm / 3.8x1.2x1.9in_x000D_ Input Voltage: USB 5V_x000D_ Output Power: 3W_x000D_ Power Interface: USB interface_x000D_ Charging Cable Length: Approx. 69cm / 27.2in_x000D_ Signal to Noise Ratio: 75dB_x000D_ Frequency Response Range: 40Hz-20KHz 1Small 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. 2The sound quality is better, the desktop computer speakers can amplify the notebook sound, and the stereo gives you a different audio?visual enjoyment. 3Easy to use, built?in USB sound card decoding, directly through the USB interface, you can play music without an audio cable. 4Rare earth true magnetism, high?quality speakers, good speakers can make music play smoothly, and the sound quality is pure. 5Sturdy and durable, made of high?quality ABS material, long service life, not easy to be damaged.1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding._x000D_ 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.1 x_x000D_ _x000D_ Portable Speaker