This digital analog audio converter can be used for home or professional audio switching. It converts coaxial or Toslink digital audio signals to analog L/R audio and can be connected to external devices, such as amplifiers, etc. The converter is small, easy to install and carry. Built-in high-fidelity amplifier chips, headphones and RCA output port can easily push 16-300 ohm high-fidelity headphones. Supports power off and adjusts the volume size, more easily adapt to different environments. It can adapt to more digital audio amplifier interface. Item Name: Digital to Analog Audio Converter Power Supply: DC 5V Input: Coaxial,Toslink Output: L/R,Toslink,Coaxial, 3.5mm Voice Frequency Supports Sampling Rate: 32kHZ, 44.1kHZ, 48kHZ, 96kHZ, 192kHZ Headphone Impedance:16-300ohm Max Output Power:200mW (16ohm), 20mW (300ohm) Features: Durable, Easy to Install, Portable, Useful Size: 87mm x 71mm x 25mm/3.43"; x 2.8"; x 0.98"; (Approx.) Notes: Due to the light and screen setting difference, the item'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 Converter 1 x USB Cable 1 x Optical Cable 1 x User Manual