METAL HOUSING: Stereo headphone amplifier splitter housing is made of metal for portability, durability and long life. 10 CHANNEL: Stereo headphone amplifier with 10 independent stereo sections, 1 input to 10 channel outputs. PROTECTION: Stereo sound amplifier splitter has protection features such as overheating and overvoltage protection, so you don't have to worry about potential safety hazards when using the headphone amplifier. DC 12V: Stereo sound amplifier is equipped with a 12V 1A power adapter to provide you with a great sound experience and a metallic feel. VOLUME CONTROL: Each output has a separate volume button for individual control of different headphones or speakers.