Features: brand new and high quality The product adopts passive design, direct insertion, and has lossless switched transmission of input and output signals. The product is mainly used to select and switch between a variety of stereo signal inputs and outputs through a common set of equipment, that is, a variety of stereo signal sources of devices. Such as TV audio, MP3 player, CD player, video game, mobile phone, tablet, computer, record player, it needs to be output on the amplifier or active speakers. The 6-channel audio signal select switch solves the complicated line plug and socket, evenly connecting the device's input signal sources to the switch for easy selection. The product uses a standard RCA port design for input and output, and uses a precise 6-level manual switch design for the switch, with independent stereo volume adjustment control. Easy Install, No power and software needed, Plug and for Play. Specifications: Material: Full metal for shell Input and output impedance: 10KΩ- 50KΩ Frequency response: 20-20kHz Distortion: <0.002% Insertion loss: <0.01dB Signal gain: 0dB Signal-to-noise ratio S/N: >98dB Input: Standard RCA interface Output: standard RCA interface Number of input channels: six stereo input signal sources Number of output channels: one stereo output Control switch: 6-position precise selection manual switch Switch channel: 6 channels Power supply: no need for power supply, direct plug-in direct use Package Includes: 1PC x 6 input 1 output stereo audio signal selection switch note: Light shooting and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.