5.1 Audio Decoder: 5.1CH audio decoder can transfer audio from Optical or Coaxial or Other Channel into 5.1 sound track(6 Channel), and output through RCA amplifier with stereo sound. Wide Application: All smart TV's digital optical or coaxial, transfer into sound track for speaker or amplifier. Suits for Smart TV or TV Box or Projector or etc as input, Amplifier or 2.0 Speaker or 5.1 Home Theater System as output Multiple Interface: Multiple audio input port,Optical x 2, Coaxial x 1 and 3.5mm AUX x 1,through the chip the audio will transfer into stereo quality sound as output. Return for Original-Sound: 5.1 channel lossless surround sound,DTS digital transformation , DB quality sound,reach theater level quality sound with one module. Plug And play No Delay: Support Coaxial or Optical audio directly to 5.1 RCA audio output,no delay. Wired power supply available, if happen incompatible or other situation, please use with power wire. Strong "Heart" In Metal Host:High quality sound require a high performance chip.Built in high quality intelligent chip, using aluminum alloy as host,better performance in anti-interference and heat dissipation. Product:5.1 Audio Decoder Sampling Rate:32-192KHz Bit Rate:16-24Bit Chip:Third Generation Intelligent Chip Input:Optical x 2, Coaxial x 1, AUX x 1 Sound Track:2.0 or 5.1 Sound Track Output:RCA x 3 Colour:Black Material:Plastic Size:105x75x25mm Package Contents: 1 x Audio Decoder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.