Soundbar has a 2.0 channel output which offers you one of the best sound qualities in its range. You can connect this speaker to a wide range of devices and enjoy hours of high definition music. � With 5W output power, this gadget comes with an efficient design for all moods and users. If not for USB, the 5V external adaptor ensures the music keeps playing while the side volume control remains at your beck and call, Impedance: 4 Ohms, Cable Length: 1.2 m � Ergonomic design and the dimensions of 40x6x6cm make this Sound bar easy to throw in a bag for a presentation or a small party for that matter. It’s overall weight is under a kilo, High efficient power design. � Better sound is often about better design. The Sp-6545 integrated 2.0 speaker with front passive radiator design gives springy bass. � Frequency Response: 20Hz-20kHz, ohm: 4?, Sensitivity: 80dB�3dB, Bluetooth Version: V5.0 + EDR, Signal Noise Ratio: ?60dB, Max SPL: 85dB, Battery capacity: 2400mAh