Features:

Stereo four-way audio input is mixed into one stereo output, which can directly drive headphones or connect to a power amplifier, 

3.5mm headphone jack, and potentiometers to individually control the volume of each channel without affecting each other. 

The maximum power supply is 12V, and the magnification is about 2 times. 

The quiescent current is about 15ma, and the maximum driving current is 70ma, which can easily drive various earphones and external power amplifiers.

Please use low-ripple power supply. For audio cables, please use shielded cables. 

The power interface is an ordinary 5.5*2.1mm DC interface.

Package Includes:

1*Headphone Amplifier

1*Cable

1*Power Adapter