Specification: Origin: Mainland China Colour: Black Power: 20W*2 Load impedance: 4-16 Signal-to-noise ratio: 85db Frequency: 20Hz-20KHz Treble control: 12dB10KHz Bass control: 12dB100Hz Shell material: ABS Product size: about 135.00x75.00x45.00mm Product size: 5.31x2.95x1.77inch Origin (Country or Region): Mainland China (Origin) Note: Batteries and plugs are not included, you need to bring your own Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.