1. The 6-channel input adopts high-contact reliability self-locking key switches for switching. When one key is pressed, the other switch automatically up to disconnect the circuit. 2. The 2-channel output XLR/ interface is a synchronous output, which is convenient for connecting power amplifiers and active speakers to produce sound simultaneously. 3. The switching adopts the L/R simultaneous switching mode. All inputs and outputs of GND are universal. 4. XLR switching adopts the simultaneous switching mode of HOT and COLD. All inputs and outputs of GND are universal. 5. The output is equipped with a one-button mute switch and adds a set of 6.35 headphone monitoring output function. Simple installation: The input and output are plug-and-play for easy installation. The signal source can be switched without loss, allowing you to enjoy a different listening experience Mainly used for selecting and switching stereo signal inputs to share the output of one or more sets of devices, such as multiple stereo signal sources (TV audio, MP3 players, etc.) Devices such as CD players, video games, mobile phones, tablets, computers, and record players need to output to power amplifiers or active speakers. The 6-group audio signal selection switcher solves the complex multi-device line plugging and unplugging operation. Just connect the signal sources of the devices that need to be input to the switcher uniformly, and you can easily and conveniently select them. Product Parameters: Power supply: No external power supply required, plug and play Input/Output interfaces: XLR and interfaces Input channel number: 6 channels (XLR/1, /5) Output channel number: 3 channels of XLR//6.35mm, with 3 groups being synchronous outputs Color: Black Material: Metal Package Contents: 1 x Audio Signal Selector Switcher Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.