Feature:1. Standard Design: Single chip USB stereo audio DAC with full speed controller that conforms to USB and S/PDIF standard protocol.2. Easier Decoding: Adopting excellent structure, the stereo decoder module can restore audio clock from USB packet, very reliable.3. Perfect Fitting: The USB to I2S DAC module has wide compatibility, which supports single ended headphone output and S/PDIF output.4. Stabler Playing: Through PLL analog, the stereo audio decoder module enables low clock jitter playback for highly stable playing.5. Easy to Install: Comes with a light weight and a compact size as well, the PCM2706U2 DAC module is very convenient to install.Specification:Item Type: Stereo Audio Decoder ModuleVoltage: 5VDigital Input Clock Frequency: 12MHzInput Current from Any Pin but Power Supply): ± 10mAEnvironmental Temperature Under Bias Voltage: -40℃ to 125℃Storage Temperature: -55℃ to 150℃Node Temperature: 150℃Welding Cable Temperature: 260℃, 5s. Peak Packaging Temperature Under Infrared Reflow Soldering: 260℃.Package List:1 xStereo Audio Decoder Module2 x Pin Header