Features: BT 5.0, supports a variety of high-definition BT formats: Adopts the Qualcomm CSR8675 BT receiver chip, supporting AAC / SBC / aptX / aptX_LL / aptX_HD / LDAC audio encoding BT format. CS8406 conversion chip: Adopts high-performance CS8406 digital audio conversion chip, and convert BT signal to high-quality Optical / Coaxial signal output. ES9018K2M decoding chip: Adopts high-performance ES9018K2M decoding chip to provide analog signals with high S/N and low THD. Support computer USB DAC: Support to connect the computer as a USB sound card, plug and play, and convert it into high-quality Coaxial / Optical / Analog signal output. High-strength aluminum alloy shell: The shell is made of high-strength aluminum alloy material, and the external removable high-gain BT antenna ensures stable and lossless signal transmission. The 13-inch OLED display shows the BT information at a glance: Using OLED display screen, BT connection status/coding format/sampling rate/song name and other information can be displayed intuitively, and working status can be known at any time.