Features: Utilizes RCA / 3.5mm headphone port output for convenient and efficient use. Automatically decodes AC-3 / DTS (LPCM / PCM / RAW) input signals without any action. Automatically switches between optical and coaxial channel input signals. Built-in high-performance RTOS operating system and audio decoder chip; supports DTS / AC-3. High Compatibility: Supports network players, HDTVs, Blu-ray DVDs, DVDs, PS3, Xbox 360, DM500S, DM800HD, etc. Input: 1 SPDIF Optical, 1 Coaxial. Output: L-OUT-R; 3.5mm Headphone Port. Compact size with a metal casing for anti-interference. Super fast startup time of approximately 3 seconds. Supports volume adjustment. Specifications: Supported Audio Formats: MP3, AC3, DTS, WAV, WMA, AAC, ALAC, FLAC, APE, OGG, M4A. Signal-to-Noise Ratio: 120db. Stereo Isolation: 80db (1KHZ). Channel Balance: 0db. Sampling Frequency: 32~192 KHz. Bit Rate: 16~24 Bit. Frequency Response: 20Hz~20KHz +/-0.7db. THD: 20Hz~20KHz 0.25-0.065%. THD+N: 1KHz 0.15%. Analog Output Level: 2.2V. Shell Dimension: 81.7 x 78 x 21.2mm. Weight: 110g. Port: Optical 1, Coaxial 1, Headphone Jack 1, L/R 1. Working Voltage: DC +5V. Maximum Current Consumption: 200mA. Working Temperature: 0-70°C. Working Humidity: 10%-80% RH (non-condensing). Storage Temperature: -10-80°C. Storage Humidity: 5%-90% RH (non-condensing). Size: Approx. 81.7 x 78 x 21.2mm / 3.22x3.07x0.83in. Note: Due to lighting effects and shooting angles, there may be slight variations in the product; please understand. Please allow 0-1cm error due to manual measurement. Package Includes: 1PC x DAC Converter. 1PC x USB Cable.