The FiiO D3 is a quick and easy way to convert digital audio output into high fidelity stereo analog sound. It is ideal for interfacing between modern digital audio/video devices with analog amplifiers or self-powered speakers. The D3 works with any playback source with an optical Toslink or coaxial digital audio output.Here are just a few of the devices supported:- Digital TVs and HDTVs- CD, DVD, Blu-Ray, and HD-DVD players- Apple TV, Google TV Revue- Game consoles: PS3 All, XBOX 360 Slim- Satellite/Cable receivers and DVRs, TiVO- AV Receivers and Integrated Amplifiers- Digital media players and streamersFeature Highlights- Built-in high-performance phase locked loop PLL- WM8805 ultra low jitter digital receiver- Supports up to 192KHz/24bit audio signal- Optical and coaxial inputs with selection switch- 2 channel standard stereo RCA output- Indicator for digital receiving status LOCKED- MINI USB power supply port AC adapter includedWhats in the box- FiiO D3- AC power adapter- Users manualSpecifications- Power supply：DC 5V- Output amplitude：1.6V（0dB Fs）- Frequency Response：20Hz~20KHz- Signal to Noise Ratio: ≥90dB- Crosstalk: 75dB- Total harmonic distortion: <0.0110mW- Size: 61.6mm×49.1mm×21mm- Weight:50g