Stereo 10 channel audio input is mixed into 2 channel stereo output, which can directly drive headphones or connect power amplifiers, 3.5mm headphone socket, and potentiometer separately controls the volume of each channel without affecting each other. 10 high-quality 09 duplex potentiometer, static current of about 15 ma, low-noise 4580 dual operational amplifiers, maximum power supply of up to 24V, and amplification factor of about 2 times. Please use a low-ripple high-quality DC power supply for power supply, and use shielded wires for audio connection, which is beneficial for signal purity. The working voltage of the 10 circuit board is between 5-12v, with a static current of approximately 270ma for 5v power supply and 103ma for 12v power supply