[2 Port 3.5mm Audio Switch] Connect two audio devices to (IN/OUT) 1 and (IN/OUT) 2, and use the 1/2 switch to select one output. Alternatively, connect one audio source to IN/OUT and choose between (IN/OUT) 1 and (IN/OUT) 2 as the output. 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 design is ideal for temporarily silencing sound. [Widely Compatible] Supports most 3.5mm audio devices such as smartphones, headphones, PCs, MP3/MP4 players, and game consoles. Easily switch audio between devices like PC and mobile phone, or toggle computer audio between headphones and speakers as needed. [Premium Material & Size] Constructed entirely of durable black metal with a solid, high-quality feel and weight. Compact design saves space and is easy to place. Material: ABS Color: Black Package Contents: 1 x 3.5mm Audio Switch 1 x 3.5mm Audio Cable Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.