[2 Port 3.5mm Audio Switch] Connect two audio devices to (IN/OUT) 1 and (IN/OUT) 2, then use the 1/2 switch to select one output. Alternatively, connect one audio source to IN/OUT and choose between outputting to (IN/OUT) 1 or (IN/OUT) 2. The output can be switched between speakers and headphones. [No External Power Required] Plug and play design requires no external power supply, allowing you to enjoy music without affecting sound quality. Note: Only one audio source is output at a time; you can switch between the two inputs. [One-key Mute Button] The audio selector features a one-touch mute function that allows you to quickly stop audio playback. This convenient mute button is ideal for temporarily silencing sound as needed. [Widely Compatible] Supports most 3.5mm audio devices such as smartphones, headphones, PCs, MP3/MP4 players, and game consoles. Easily switch audio between devices, such as toggling between PC and mobile or switching computer audio from headphones to speakers and back. [Premium Material & Size] Constructed entirely of durable black metal for a solid, high-quality feel. Compact design saves space and is easy to place in any setup. Material: ABS Color: Black Package Contents: 1 x 3.5mm Audio Switch 1 x 3.5mm Audio Cable Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the image compared to the actual product. Measurement may vary by +/- 1-3 cm.