Bonoboss BOS-BS230, Multimedia USB Soundbar Speaker, USB Power, Computer Speaker, Laptop PC SoundBar Power Output(R.M.S) : 4.4W / Power Intput : DC 5V, 1A(USB) / USB Power Drive Units : 2" x 2 (4 ohms) Frequency Response : 60Hz ~ 20 Khz Dimension(WxHxD) : 19.5 x 2.1 x 2.8 inch / 496 x 55 x 72 mm Volume Control / Power Switch / Headphone Jack / Microphone Jack / Headphone Switch