aoeyoo AY42B 5.1 Audio Gear Digital Sound Decoder Converter Optical Spdif/ Coaxial Transfer The Dts/ac-3 Signal and Stereo(r/l) Into 5.1 Output Adopt the most advanced audio decoder chip, support DTS/AC-3. High compatibility: support network player, HDTV, Blu-ray DVD, DVD, PS3, Xbox 360, DM500S, DM800HD, etc. Transfer the stereo(R/L) audio signal into 5.1 or 2.1 analog audio signal output. Small Size and Metal case, Anti-interference, Plug and play. USB 5V power supply output for 5.1 channel headphone, very practical. AUX Input Ports: Connect to any group of LPCM stereo signals (such as computer audio, MP3/MP4 player audio). Automatically detect AC-3 DTS LPCM digital audio signal.Multiple channels, a key switch. Fast and convenient.