Specifications:One optical fiber and one coaxial interface input, which can be connected to your DVD, high clarity player, etc.One RCA interface output, convenient to connect with audio amplifier equipment with RCA interface.The 3.5mm audio interface output can be connected to your earphone.The shell is made of metal, which is light and compact, and has good anti-interference performance to make the sound field pure and clear.Item Name: Digital to Analog Audio ConverterShell Material: MetalSupport Audio Format: PCMSignal to Noise Ratio: 105DBResolution (1KHZ): 94DBResponse Frequency: 20Hz - 20KHz - 0.2dbTHD+N: -90DBTotal Harmonic Distortion (THD): 10Hz - 20KHz 0.25 - 0.065%Block: 0.577FsSampling Rate: 32 - 192 KHzBit Rate: 16 - 24 BitInput Level: 0.3VWorking Voltage: +5V Up to 6VMaximum Power Consumption: 100mAStorage Temperature/Humidity: -60 Degrees Celsius - 150 Degrees Celsius/ 5% - 90% RH (No Condensation)Working Temperature/Humidity: -10 Degrees Celsius-70 Degrees Celsius/10% - 80%RH (Non-condensing)Human Body Model Electrostatic Discharge Protection: 8kV (Air Gap Discharge), 4kV (Contact Discharge)Features: Lightweight, Compact, Anti-interference, Easy to UseSize: 6cm x 5.5cm x 2.2cm/2.36" x 2.17" x 0.87" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Digital to Analog Audio Converter1 x USB Power Cord1 x User Manual