Description: DA615B DTS/Ac3 5.1ch Audio decoder support USB player, decoder DTS / AC 3 source digital audio signals into analogue 5.1 channel audio signals. Gender noise ratio: 120 dB, multiple audio inputs, analog 5.1-channel Stereo output. Package including 1x 5.1 audio rush digital audio decoder, 3x power supply RCA audio cable, 1x optical fiber cable, 1x manual. USB player and Input source selection power off memory function, External antenna, 20m transmission distance. Support hardware decoding (5.1 channel separation ) and software decoding(2.0ch to 5.1ch). The main function of 5.1CH audio decoder is to combine HDM, optical fiber, coaxial, PC-USB, Bluetooth, U disk playback and other audio decoding into 5.1 channels, The output (6 channels) is then amplified and output by a power amplifier or active speakers. Specification: Model: DA615B Plug Type: US Size Chart: Size: approx. 108x88x27mm/4.25x3.46x1.06inch Package Includes: 3 Pieces RCA Audio Cable 1 Piece Antenna 1 Piece Optical Fiber Cable 1 Piece Decoder 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!