1. Function: It is mainly used to transmit digital audio signals, such as left and right channels or multi-channel signals, between various audio devices with Toslink square ports through optical fiber as the transmission medium. It can achieve long-distance, low-loss audio signal transmission, and can effectively avoid electromagnetic interference, ensure the quality and stability of audio signals, especially suitable for home theaters, professional audio systems and other scenes with high sound quality requirements.

2. Structural features: Generally, copper-plated connectors are used to enhance oxidation resistance and wear resistance. The internal optical fiber core is usually a plastic optical fiber core or a glass optical fiber core. The glass optical fiber core has better light transmittance, higher transmission fidelity and more stable transmission speed. There is a protective cover on the outside to protect the optical fiber core from external damage. At the same time, it has good flexibility, which is convenient for connection and wiring between different devices.

3. Usage scenario: In the home theater system, it can be used to connect TVs, amplifiers, speakers, projectors and other equipment to achieve high-quality audio signal transmission and create an immersive sound experience. In the professional audio field, such as recording studios, performance venues, etc., it can also be used to connect various audio devices to ensure the high fidelity of audio signals during transmission.