<ul><li>Size:50*26*26 mm</li><li>Button switch output/input model</li><li>Two Audio Input A/B to One Audio Output.User can select A or B to output by button.</li><li>One Audio Input to two Audio Output A/B.User can select A or B to output by button.</li><li>Packing List: 1 * Audio Switching Board 3.5mm audio input A / B Group input Switch Select output</li></ul> Size:50*26*26 mm 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. Product description 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. Packing List: 1 * Audio Switching Board 3.5mm audio input A / B Group input Switch Select output

KNACRO Audio Switching Board 3.5mm Audio Input A/B Group Input Switch Select Output-with Shell