Parameters Material: all-metal case Input and output impedance: 10KΩ Frequency response: 20 – 20 kHz Distortion: <0.002% Insertion loss: <0.01dB Signal gain: 0dB Signal to noise ratio S/N: >98dB Input port: standard RCA port M3.5mm port (optional) Output port: standard RCA port M3.5mm port (optional) Number of input channels: 6-channel stereo input (reverse 6-channel switched output) Number of output channels: 2-channel stereo output (reverse 2-channel switched input) Control switch: 6-level and 2-level precise manual selection switch Input switching channel: 6 channels Output switching channel: 2 channels Net weight: 0.26 kg Package weight: 0.37 kg Dimensions(L*W*H): 122*50*38 mm Packing List 1*6-Channel Audio Switcher