This product is designed for modern USB-C devices and can output digital audio signals to audio systems via TOSLINK optical fiber. It supports SPDIF (PCM) format audio transmission, providing clear and interference-free sound quality. Suitable for devices such as mobile phones, tablets, and laptops that support USB-C audio output USB-C male to standard TOSLINK (optical) male connector, supports SPDIF digital audio output (PCM stereo), high-fidelity sound quality, anti-electromagnetic interference, plug and play, no driver installation required. Supports devices compliant with USB Audio Class (UAC1/UAC2) protocols. Compact and flexible design, suitable for portable or fixed installation. Customizable cable length and outer sheath material (PVC, TPE, braided, etc.). Connects USB-C devices (such as mobile phones, tablets, and laptops) to AV receivers, DACs, or speakers with TOSLINK inputs for home theater and Hi-Fi audio system audio output, achieving digital audio conversion without analog signal interference. Suitable for modern devices without traditional optical or 3.5mm interfaces. Specifications: Interface Type: USB-C (male) to TOSLINK optical (male) Audio Format: SPDIF (PCM stereo) Optical Fiber Type: Standard TOSLINK plastic optical fiber Operating Temperature: -10°C to +60°C Color: As Shown Material: Braided Wire+Metal Package Contents: 1*USB C Male To TOSLINK Male cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.