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 streamers Feature 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 included Whats in the box - FiiO D3 - AC power adapter - Users manual Specifications - Power supplyDC 5V - Output amplitude1.6V0dB Fs - Frequency Response20Hz~20KHz - Signal to Noise Ratio: 90dB - Crosstalk: 75dB - Total harmonic distortion: <0.0110mW - Size: 61.6mm49.1mm21mm - Weight:50g