Features: Experience superiorsily auditory with the 4 Channel Headphone Amplifier, featuring low noise, low distortions JRC4580 amplifier chip and auditory capacitors enhances sound. This metal headphone mixer supports simultaneous use of up to four headphones, offering independent sound control for various auditory devices. For music producer, recording engineers, band member, and anyone requiring highly auditory monitoring, this amplifier is essential tool. Perfectly for studio monitoring,monitoring during live performances, and home recording or music creation. With its versatiled input option including 6.35mm, 3.5mm along with adjustable light effects, this headphone amplifier seamlessly integrates into any auditory setups, providing flexibility and convenience. Specifications: Type: 4-Channel Headphone Amplifier Chip:Imported JRC4580 Chip Size:about 90x55x40mm/3.54x2.17x1.57in Power: DC12V Power Supply Package Includes: 14-Channel Headphone Amplifier note: Due to problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.