1.Upgraded 3.2inch Color Screen,Upgraded USB flash disk to play output from optical fiber/coaxial source code,Upgraded 2.0/2.1/3.1/4.1/5.1ch and other channels output mode.    2.Upgraded DSD/ISO and other formats for more powerful playback,Upgraded disk reading ability of various USB flash drives / card readers,Upgraded 5.8G wireless surround support,Upgraded DAC chip ES9023P,Upgraded headphone jack output    3.Channels:2.0 channel: front left + front right,2.1 channel: front left + front right + bass,3.1 channel: front left + front right + center + bass,4.1 channel: front left + front right + left surround + right surround + bass,5.1 channel: front left + front right + left surround + right surround + center + bass    4.Parameter:Input port:HDMI (x3) + ARC + Coaxial + Optical Fiber + USB Sound Card + AUX + Bluetooth + U Disk etc.Output port:HDMI + Optical Fiber + Coaxial + 5.1CH + 3.5mm headphone jack    5.HDMI Version:2.0b version, HDCP2.2, resolution support 4K at 60hz    U disk play format:iso/dsd/dts-es/dts/ac3/flac/ape/wav/hdcd/aac/m4a/mp3 etc.    Sampling rate/Bandwidth:DSD support DSD256/1 bit, PCM support 384KHz/32bit    Audio output amplitude:greater than equal 2Vrms    Signal-to-noise(SNR):112db    Bluetooth version:5.0 version, transmission above 15m    USB sound card support system:Support WinXP/Win7/Win8/Win10/Win11    Output method:Support 5.1CH decoding output and optical fiber/coaxial source code output    Decoding output ability:Support dts/dolby hard decoding (authentic 5.1) and PCM soft decoding ( fictitious 5.1)    Operation control:Support knob and remote control    Output channel:Support 2.0/2.1/3.1/4.1/5.1CH    Volume adjustment:Support Overall volume adjustment and mono volume adjustment    LCD Display: Support 3.2inch color screen display and backlight switch    5.8G wireless surround: Support 5.8G wireless module expansion (only 5.8G version)    Power supply:DC12V/1A    Weight:1.1kg    Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. / UK plug,it applies to Malaysless module expansion (only 5.8G version)    Power supply:DC12V/1A    Weight:1.1kg    Plug Type:US Plug,it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on.    Voltage:AC110V    Colour:Black    Material:aluminum alloy    Size:218x110x78mm        Package Contents:    1 x Host    1 x Power Adapter    1 x USB Sound Card Cable    1 x Remote Control    1 x Digital Optical Fiber Cable    1 x Bluetooth Antenna    1 x English User Manual