Features: brand new and high quality Stable Low-pass Filter Current: Stable voltage doubler rectifier filter circuit effectively filtering out signal interferenceBrings natural and realistic sound effects. Two sets of balanced power supply: balanced input and output signals stable power supply and anti-interference. Equipped with boot buffer function: One-key boot effectively preventing the current impt sound when booting. Shielding Technology Anti-interference: The newly upgraded shielding technology the power supply and the power supply are designed separately the external power supply is equipped with a shielding magnetic ring which completely isolates the electromagnetic wave from the for DC power supply to ensure that the signal is not interfered! Multiple Occasions: With high-quality sound quality it can easily deal with various ples such as karaoke musical instruments live broadcast recording etc. Specifications: Material: Metal Color: Blk Product Dimension: approx. 4x6.5x10.5cm/1.57x2.56x4.13inches Net Weight: 250g/0.55lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors the picture may not reflect the tual color of the item. Package includes: 1PC 48V Power Supply