Description Are you looking for a professional yet affordable power supply? Are you in search of a sturdy trustworthy tool that can do multiple jobs at once? If yes look no further! Our professional power supply must meet your needs. It is one of the best choices for you. Features -Color: Black -Material: plastic stainless steel -Size: 10.00X8.50X5.50cm/3.93X3.34X2.16in Note: random color accessory - Adopt power boost isolation technology to effectively prevent ground wire . - Built-in low-pass filter circuit design fully filter out the noise of external audio equipment. - start-up function to avoid the impact sound of pop when starting up. - Two sets of balanced power supply balanced input and output signals make the voltage balance and stable and suppress common mode . - With USB 5V boost circuit low-voltage power supply technology to prevent harm to the human body and solve the problem of unsuitability due to city voltage difference.