**********Easy to set up, no special software, app, or driver to install, a true plug-and-play digital audio adapter*****With USB, optical and coaxial S/PDIF inputs can fit with most home audio system, and RCA output can be connected to amplifier or powered speakers on your desktop; Built-in Hi-Fi headphone amp chip can drive most 16ohm to 200ohm headphones*****160mW RMS(32 ohms, 20 Hz - 20 KHz, 0.01 % THD), with bass and treble control can be used as preamp or volume controller for your PC/MAC/Computer*****Mini Compact D/A converter, stream bit-perfect 24bit/192KHz HD with low jitter, with output protect circuit, safe for your expensive audio system*****Come with 5V USB power supply cable, optical cable, USB type B cable and 18-month warranty; Full metallic shell to ensure high quality