Description:This is a professional speaker with superior sound quaility, composed of 1 main speaker and 2 side speakers. Made of high density wood, together with bass boost technology, adjustable bass sound effect, this speaker will deliver superior music sound to your ears. And the plastic-steel mesh enclosure is designed to prevent speakers from dust, you can hear the sound clearly. It may be a perfect companion for your cellphone, tablet, laptop, or desktop PC Features:High density wood material makes the sound solid and rich.Bass boost technology, more steady and undistorted bass sound.Volume and bass independent adjustment, shows perfect interpretation of all kinds of music.Plastic-steel mesh enclosure to prevent speakers from dust, to make sure the sound delivered clearly to your ears.Suitable for desktop PC, laptop, DVD, TV, cellphone, tablet, and other audio devices.Specifications:Brand: SADAModel: SL-8018Color: BlackMaterial: Wood + PlasticMain Speaker Size: Approx. 230 x 140 x 190 mm / 9.1 x 5.5 x 7.5 inchSide Speakers Size: Approx. 80 x 65 x 145 mm / 3.1 x 2.6 x 5.7 inchFrequency Response: 25Hz-20kHzAudio Jack: 3.5mmPower Supply: USB 5VCable Length: 1mVolume/Bass Adjusting: KnobOutput Power: 5WSeparation: ≥40dBSNR: ≥80dBApplications: Desktop PC, laptop, DVD, TV, cellphone, tablet, and other audio devices.Package Weight: About 1580gPackage size: 31*28*18.5cmPackage List:1 x Main Speaker2 x Side Speaker1 x Manuaul(Other items in the pictures are not included.)