Features: Powerful Decoding Function DAC uses ES9018K2M, supports DSD256/1bit and PCM 384kHz/32bit with strong interpretation power HIFI can act as a bridge between computer, phone, amplifier, speakers, and headphones, and can output DSD256 source code signals to enjoy lossless music live Powerful USB sound card chip with powerful performance and high sampling rate with SA9227A chip Bluetooth-compatible protocol LDAC/aptX/aptX-Adaptive/aptx-LL/aptx/AAC etc. Bluetooth-compatible sampling rate and bit depth: 44.1khz/48khz/96khz (only LDAC supports 96Khz) Specifications: Input Interface: coaxial+fiber optic+USB sound card+Bluetooth-compatible and other 4 interfaces for input switching Output Interface: Fiber optic+RAC+3.5mm headphones +6.35mm headphones, and other four interfaces output simultaneously Bluetooth-compatible protocols: LDAC/aptX/aptX Adaptive/aptX LL/aptX/AAC/SBC, etc. Bluetooth-compatible sampling bit depth: 16bit/24bit (highest) Bluetooth-compatible version: 5.1 (compatible with lower versions such as 5.0/4.2) Bluetooth-compatible distance: can be transmitted within 15 meters Support System: Win11 and below, Android, Apple, etc. USB sound card sampling rate and bit depth: 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 depth: up to 192KHz/24bit support DAC sampling rate and bit depth: 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. make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1× Aluminum alloy Codec Host 1× DC12V Power Adapter 1× Bluetooth-compatible Antenna 1× USB Adapter 1× USB Adapter 1× User Manual