Feature:1.High-quality sound suitable for enjoyment at work or other small space. Treble sound fill a room with so much music comes through crisp and clear which provides you a more enjoyable stereo sound experience with this elegant and sleek sound bar speaker.2.Simple operation: Plug in the USB port for power and plug the red cable for microphone and the green cable for earphone. Rotate the knob to adjust volume or power on/off.3.Fits your desk perfectly: The ultra-slim sound bar is tailored to save precious space and avoid cluttering, widely used in office and bedroom, portable and light weight but delivering a noticeable stereo sound, yet it isn't too loud to disturb your partners, you can enjoy as you want without sacrificing valuable desk space.4.Wide compatibility: It works with any device that has a USB port or a standard 3.5mm headphone jack, such as PC, computer, laptop, tablet, microphone, headset, smart phone, projector, MP3, MP4, Walkman, CD player. Enjoy your favorite games, music and movies.5. Control: volume control / power switch / earphone jack / microphone jack Specification:Material: ABS PlasticInput Connection: Support 3.5mm audio input.Output Power: 4 3W*2Playing Format: MP3/WAVControl: volume control / power switch / earphone jack / microphone jackSize: 40cm*5.5cm*5.5cmWeight: 480g Package Included:1 x Speaker1 x User ManualNote:1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting.2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.