Steady and lossless bass sound effect and stereo surrounding sound loudspeakers bring you wonderful music.With 3.5mm audio plug, it's perfect 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.Specification: Material: PlasticOutput Power: 3WPower Supply: DC 5V & USB 5VInput Interface: USB Plug & 3.5mm Audio PlugChannel: 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 Include: 1* Sound barIf you have any questions about the product, please contact me, we will contact you within 24 hours and give you a satisfactory answer.