Features: Portable: super-compact audio switcher just occupies very little space at home, space-saving and easy to carry around. Convenient: it allows for connection of several amplifiers & audio equipment, no frequent plugging/unplugging, no software needed. Two-way: 6-in-2-out: connect 6 audio sources(computers/CD player/etc. ) to "IN" and 2 audio outputs(speakers/etc.) to "OUT"; 6-out-2-in: connect 2 audio sources to "OUT" and 6 audio outputs to "IN". Easy-to-use & Customized: users can select the device they want to use as the audio input or output, switch via control knob with ease. High Quality: audio selector made of durable metal shell, adopts selected electronic parts for stable & lossless signal transmission, good sound quality. Specifications: Material: Metal Color: Black Type: 6 inputs 1 output & volume control, 6 inputs 2 outputs & RCA ports, 6 inputs 2 outputs & 3.5mm ports(Optional) Impedance: 10K-50K Frequency Response: 20~20kHz Distortion: