5.1 Audio Decoder: 5.1CH audio decoder can transfer audio from Optical/Coaxial/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/amplifier. Suits for Smart TV/TV Box/Projector/ etc as input, Amplifier/2.0 Speaker/5.1 Home Theater System as output. Multiple Interface: Multiple audio input port, Optical*2, Coaxial*1 and 3.5mm AUX*1, through the chip the audio will transfer into stereo quality sound as output. Return To 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/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*2, Coaxial*1, AUX*1 Sound Track: 2.0/5.1 Sound Track Output: RCA*3 Colour: black Material: plastic Size: 105x75x25mm Package Contents: 1 * 5.1 Optical Coaxial Audio Decoder Only the above package content, other products are not included. Note: Light 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.