Features: The 3.5mm Auditory Switcher offers a seamless 2(1) In 1(2) Out bidirectional auditory switching experience. Complete with Sound control and a mute button, all without the need for external power. Featuring 3.5mm and 2RCA interfaces, this switcher allows flexible connection option to accommodate various devices, ensuring easy operating and cost efficiency. For audiophiles, home theater enthusiasts, and users requiring multiple device auditory management, this switcher to diversed auditory needs. Perfectly for use in home theaters, recording studios, or office conference systems, the switcher excels in managing auditory across multiple environment. Specifications: Item: 2(1) In 1(2) Out Bidirectional Auditory Switching Box Support 3.5mm and 2RCA interfaces Component:Alloy Casting Size：about 83x60x28mm/3.27x2.36x1.1in Package Includes: 1PC 2x1 Bidirectional Auditory Switching Box note: 1. Please allow 0-2cm error due to manual measurement. Please make sure do not mind before bid. 2. The color may have different as the differences display,please understand