Introduction: This digital-to-analog audio converter is specially designed for home or professional audio signal switching. It converts coaxial, digital Toslink audio, or Bluetooth-compatible signals into analog L/R and 3.5mm jack audio signals. Features: 1. Built-in Bluetooth-compatible V5.0 receiver module, supporting Bluetooth-compatible connection for mobile devices. 2. Supports digital audio conversion to analog audio signals. 3. Built-in high-performance DAC chip, supporting 192K/24bit sampling rate. 4. Adopts a dedicated Bluetooth-compatible antenna for stable signal transmission. 5. Supports one optical and one coaxial input interface. 6. Supports one RCA and one 3.5mm audio output interface. 7. Supports output volume adjustment. 8. Ultra-low power consumption. Specifications: Bluetooth-compatible version: V5.0 Bluetooth-compatible distance: >10M Optical/Coaxial Input Audio Format: PCM / LPCM Optical/Coaxial Input Sampling Rate: 32, 44.1, 48, 96, and 192KHz Power: 125mW x2 @ 32Ω Suggested headphone impedance range: 16-300Ω THD: <0.0003% Frequency Response: 20Hz - 20KHZ SN (Signal to Noise Ratio): >120DB Operating Temperature: 0℃ to 70℃ Operating Humidity: 10% to 85% RH (non-condensing) Storage Temperature: -10 ℃ to + 80 ℃ Storage Humidity: 5% to 90% RH (non-condensing) Power Supply: External power supply via USB cable Power Consumption: Max=5W Dimensions (L*W*H): 85 x 100 x 28 mm Net Weight: 119g Package: 1 x 192kHz Bluetooth-compatible DAC Converter 1 x 1m Optical Cable 1 x 1m Coaxial Cable 1 x Power Cable 1 x User Manual