Features 1、With 3‑inch bass speaker and 3W high‑power output, as well as stereo surround sound, this wired desktop speaker can bring you surging bass enjoyment. 2、The full-range speaker unit cooperates with the bass-diaphragm cavity space sound-oriented acoustic structure design, the bass impact is extraordinary. 3、Equipped with a bass reversing hole, making the bass more shocking, the combination of treble and bass, independent knob adjustment, you can control the sound effect you want 4、Equipped with an independent switch button, which can save electricity and is more convenient. There is no noisy electric current when shutting down, and the experience is smoother. 5、You can install this subwoofer speaker in your home or office, it is suitable for desktop or laptop computers and other equipment, it has a wide range of compatibility. Specification Item Type: Sounder Speaker Material: ABS Audio Cable Length: Approx. 1.5m / 1.6yd Speaker Channel: 2.1 Stereo Power Supply Mode: DC5V-600MA Adjustment Form: Knob Output Power: 3W Package List 1 x Main Speaker 2 x Sub-Speaker 1 x User Manual