1、BI DIRECTIONAL: Sound converter can realize coaxial sound and fiber optic sound converting to each other, bringing you a clearer and premium sound experience. 2、APPLICABLE EQUIPMENT: Suitable for TV external speakers, TV through coaxial connection amplifier or speakers, so that you can enjoy the high end experience of sound and video entertainment at home. 3、MULTIFUNCTIONAL DESIGN: Supports multi functional digital sound decoding, allowing you to enjoy music and movies on different devices. Coaxial and optical fiber switch with one button, output at the same time. 4、PLUG AND PLAY: Optical coaxial sound converter adopts simple and easy to use design, plug and play, no need for complicated installation steps. No driver required, just plug and play. 5、METAL CASE: Made of metal case material, safe and wear resistant, good heat dissipation and not hot. Made of premium materials, stable and reliable, providing you with long lasting sound decoder service.