Steady and lossless bass sound effect and stereo surrounding sound loudspeakers bring you wonderful music.With 3.5mm audio , it's for desktop, laptop, TV, smartphone, tablet PC, MP3, MP4 and more.This USB-powered speaker is energy-saving and environment-friendly, safe and reliable.plastic-made material, lightweight and portable, convenient to take.Classical black appearance makes it beautiful and all-match with the decoration style of your room.Volume knob with LED light makes operation easier and makes the speaker more .Specification:Output Power: 3WPower Supply: 5V & USB 5VInput Interface USB & 35mm Audio Channel: 2.0Separation: 40dBSNR: 80dBFrequency Response Range: 25Hz-20KHzPower Input: USB/DC 5V-600mAUSB Cable: approx. 1mAudio Cable: approx. 1mMain Item Size: approx. 32 * 6.8 * 6.4cm / 12.59 * 2.67 * 2.51inMain Item Weight: approx. 466g / 16.43ozPackage Size: approx. 32.7 * 9 * 7.5cm / 12.87 * 3.54 * 2.95inPackage Weight: approx. 545g / 19.22ozPackage List:1 * Computer audio(Excluding other exhibits)Notes:1. Due to measurement, please allow an error of 1-3 cm.2. Due to different computer screens and monitors, the actual color may be slightly different from the picture.Thank you for your understanding!Connect everything on your device and let the party begin.