Steady and undistorted bass sound effect with stereo sound surrounding, which brings you wonderful music.Wide Compatibility: for desktop, laptop, DVD, TV, smartphone, tablet, and other devices with 3.5mm audio port.USB-powered, energy-saving and safe and reliable.Lightweight and portable, convenient to carry.Enjoy your music through three high-performance loudspeakers.Specification:Model: D-202Material: PlasticOutput Power: 3WPower Supply: 5V & USB 5VInput Interface USB & 35mm Audio Channel: 2.1Seperation: 40dBSNR: 80dBFrequency Response Range: 25Hz-20KHzColor: BlackUSB Cable: approx. 1 mAudio Cable: approx. 1 mMain Speaker Size: approx. 12.8 * 11.6 * 9.6cm / 5.03 * 4.56 * 3.77 inSub Speaker Size: approx. 7 * 6 * 6cm / 2.75 * 2.36 * 2.36 inSpeakers Weight: approx. 582 g / 20.52 ozPackage Size: approx. 23.3 * 15.6 * 12.6cm / 9.17 * 6.14 * 4.96 inPackage Weight: approx. 686 g / 24.19 ozPackage List:1 * Set of Speakers (3 speakers a set)(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.