1、CONVENIENT and PRACTICAL: The 4k Converter can convert 1 High Definition Multimedia Interface input to 1 High Definition Multimedia Interface and voice frequency (SPDIF and 5mm) output. Support SPDIF and 5mm voice frequency output 2、3 MODES: The 4k Converter supports three switch dial design, supports HDM pass through mode, 0 channel mode, 1 channel mode 3、ALUMINUM ALLOY MATERIAL: The 4k Converter is made of aluminum alloy material, which has stable heat dissipation performance and can effectively protect the chip. Supporting ARC function 4、USB INDEPENDENT POWER SUPPLY: Equipped with USB independent power supply, the 4k Converter supports USB independent power supply, with sufficient power supply and stable performance 5、SUPPORTED FUNCTIONS: Supporting 4K x 2K high definition, stereo 3D visual effects, video playback without noise. The optical interface supports 7.1 channels, and the stereo surround gives you an unforgettable listening experience 1 x High Definition Multimedia Interface Converter  1 x Charging Cable1 x User manual Item Type: High Definition Multimedia Interface ConverterMaterial: Aluminum AlloyHDCP Version: 2.0Resolution: 2160P, 1080p, 1080i, 720p, 576p, 576i, 480pSupport Voice Frequency: SPDF and L/R Voice FrequencyBaud Rate: 18GbpsSupport Cable: High Definition Multimedia Interface