Features: The power supply port is USB C, and one is on the left and one on the back of the product to accommodate more placement and usage scenario. Two signal input method: sound cable and microphones induction Customized wrap packaging lining greatly reduces the risk of transportation damage. It is recommended to conduct a frequency sweeping test after purchasing a spectrum product to whether the function meets the standard and avoid being misled Due to the LED driver chip itself, there may be slight flashing of LED lights Specifications: Component:ABS Color:Green/White Size:Approx.110x50x20mm/4.33x1.96x0.78inch Package Includes: 1 Set Music Meter Level note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.