Plug and play, USB power supply is more stable, no driver installation is required, and the sound is transmitted synchronously after connection. The optical fiber plug has a snap-on design, which is not easy to loosen after inserting the device, and the plug and unplug are smooth. The TV is connected to the sound wall to create a home theater, enjoy the stereo surround sound effect and feel the shocking film and television experience. Support PCM, Dolby, DTS, 5.1 sound effects, enjoy cinema-level stereo surround sound at home. Powerful intelligent optical fiber core, light pulse transmission audio reduces electromagnetic interference, clearer sound quality, stereo sound, and say goodbye to current noise. Different batches may have different appearances, which will not affect the use; different light or display may cause color difference in the actual product Interface type: square fiber + 3.5mm audio Power supply: USB power supply Colour:black Material:PVC+ABS+Alloy Note: Optical fiber interfaces are commonly marked with SPDIF, OPTICA, optical fiber, OPT, Toslink, etc. Check whether the device is a square optical fiber interface. Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 1 x Digital fiber audio converter