Features: 16-bit music level indicator, which can be input by voice controls induction, can be input by Sound signal line (needs to be switched), and there is no need for human intervention in AGC and professional signal size. All function setting have the function of saving memory, and one setting can be used for long time. Crafted from plastic and acrylic, the AK-DB16VU is not only a practical addition to your sound equipment but also a stylish collector's item for enthusiasts of sound gear. This Amplifiers board features adjustable light Speeds controls, ensuring your Sound output is both visually and acoustically precise. Perfect blend of modern functionality for enhances sound experience. Specifications: Component:Plastic+Acrylic Type:Single Channel/Double Channel Size:Approx.100x50x10.5mm/3.93x1.96x0.41inch 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.