Feature:1. Equipped with a optical fiber input interface and a coaxial input interface, promises higher efficiency.2. Can be connected to the power amplifier system of DVD, High Definiton, etc., through RCA output interface.3. Eliminate noise when there is no input signal, and automatically mute it when a nonaudio signal is input.4. Supports 192kHz 24bit sampling rate, also supports easy volume adjustment and bass adjustment.5. The metal shell works perfectly in resisting the interference, ensuring more stable output.6. The 3.5mm audio output interface on one channel supports connection to headphones.Specification:Item Type: Digital to Analog Audio ConverterSupport Audio Format: PCMResolution (1KHz): 94DBResponse Frequency: 20Hz-20KHz-0.2dbSignal-to-Noise Ratio (SNR): -100dbTotal Harmonic Distortion (THD + N): 10Hz-20KHz 0.25 -0.065%Blocking Time: 0.57FsSampling Rate: 32-192KHzBit Rate: 16-24 BitOutput Electrical Level: 7VHeadphone Output Power: (RL-322) 30mWOutput Impedance: 47 OhmWorking Voltage: +5vMaximum Voltage: 6vMaximum Power Consumption: 100mAOperating Temperature Range: 10-70Storage Temperature Range: -60-150Working Humidity Range: 10%-80%RH (non-condensing)Storage Humidity Range: 5-90%RH (non-condensing).Package List:1 x Digital to Analog Audio Converter1 x User Manual1 x Charging Cable1 x Optical Fiber Cable