Features: 1. 2-IN-4-OUT audio selector with two inputs compatible with amplifiers and four outputs for speaker connections. 2. Front panel push-button controls for manual input and output switching; ensures stable audio performance without interference. Eliminates the need for frequent plugging and unplugging, offering ease of use and energy efficiency. 3. Non-slip pad on the bottom helps protect surfaces; using a switch reduces wear on audio ports, helping extend the lifespan of audio equipment. Parameters: Model: SP-24B Audio Input: Stereo RCA x 2 Audio Output: Stereo RCA x 4 Material: Plastic Color: Black Package Contents: 1 x Speaker Selector Box Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.