1. PCB size:40*22mm
2. Button switch output/input model
3. Two Audio Input A/B to One Audio Output.User can select A or B to output by button.
4. One Audio Input to two Audio Output A/B.User can select A or B to output by button.
5. Packing List: 1 * Audio Switching Board 3.5mm audio input A / B Group input Switch Select output