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 Ohm -50K Ohm Frequency Response: 20~20kHz Distortion: less than 0.002% Insertion Loss: less than 0.01dB Signal Gain: 0dB SNR: more than 98dB Item Weight: 260g / 9.17oz Item Size: 12.2*5*3.8cm / 4.80*1.96*1.49in Package Weight: 350g / 12.34oz Package Size: 18.5*13.5*6.5cm / 7.28*5.31*2.55in Note: Audio switcher only, other accessories in the pictures are not included. Due to manual measurement, there may be deviation, please in kind prevail. Due to lighting or other reasons, the picture and material object may slightly differ. Packing List: 1 * Audio Switcher