Features: Powerful decoding function DAC adopts ES9018K2M, supports DSD256/1bitand PCM 384kHz/32bit with strong parsing power HIFI can serve as a bridge between computer, phone, amplifier, speaker, and earphone, and can output DSD256 source code signals to enjoylossless music live Powerful USB sound card chip with powerful performances andhigh sampling rate using SA9227A chip Bluetoothcompatible protocolLDAC/aptX/aptX-Adaptive/aptx-LL/aptx/AACetc. Bluetoothcompatible sampling rate and bit width: 44.1khz/48khz/96khz (onlyLDAC supports 96Khz) Specifications: Input interface: coaxial+fiber optical+USB sound card+Bluetoothcompatible and other 4 interfaces for switching input Output interface: Fiber optical+RAC+3.5mm headphone +6.35mm headphone , and other four interfaces simultaneously output Bluetoothcompatible protocols: LDAC/aptX/aptX Adaptive/aptX LL/aptX/AAC/SBC, etc. Bluetoothcompatible sampling bit width: 16bit/24bit (highest) Bluetoothcompatible version: 5.1 (compatiblewith lower versions such as 5.0/4.2) Bluetoothcompatible distance: can be transmitted within 15meters Support systems: Win11 and below, Android, Apple, etc. USB sound card sampling rate and bit width: DSD supports up to DSD256/1bit, PCM supports up to 384KHz/32bit USB sound card supports devices such as computers, phones, tablets, etc. Optical/coaxial sampling rate and bit width: up to 192KHz/24bit support DAC sampling rate and bit width: DSD supports up to DSD256/1bit, PCM supports up to 384KHz/32bit Operational amplifier chip: NE5532, users can replace and upgrade it themselves Power supply: DC12V/1A Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Aluminm alloy Codec Host 1 DC12V Power Adapter 1 Bluetoothcompatible Antenna 1 USB Adapter 1 USB Aadapter 1 User Manual