Description:  Name: Audio signal switcher.  Voltage: DC 7V-24V, AC 6V-18V, AC and DC universal regardless of positive or negative.  Function: four in one out (four groups of audio signals are connected at the same time, and one group of signals is output).  Method: Push-button switch, the first group of output is defaulted, press once to switch one group.  Features: Relay switching, zero loss.  Application: computer, TV, mobile phone, home theater, etc.  Product size: 60*52*15mm.  Product weight: 50 grams.     Operation guide:  1. Supports four groups of input signals, with the switch button, one of the outputs can be selected, and the default is on The first group of signals is connected;  2. Use the relay to switch the four-way signal, basically there is no loss;  3.Wide voltage range, DC 7V-24V, AC 6V-18V, AC and DC universal regardless of positive and negative;  4. This product has no signal amplification function, just switching the signal source;  5. The control board has four kinds of signal lights, each group corresponds to one signal, and the switch is clockwise.  Top left, top right, bottom right, bottom left, top left, cycle in turn;  6. The control board can be fixed on the panel, please adjust the hole position of the panel first, and then solder the PCB Button soldering point on the board;     Package includes:  1 x Audio signal switcher