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 1.3-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.Specifications:USB Interface: Type CPower Input: DC 5V / 1ADisplay: OLED, 128 * 64 pixelsBT Specification Version: 5.0BT Chip: CSR8675BT Audio Support Formats: SBC, AAC, aptX, aptX_LL, aptX_HD, LDACTransmission Distance:About 10 MetersTHD + N:Optical Output: 0.00087%Coaxial Output: 0.00087%AUX OUT: 0.07%Output Level:Optical Output: 0.5Vp-pCoaxial Output: 0.5Vp-pAUX OUT: 2.5VSize: 10.5 * 7.6 * 3.4cmPackage Size: 15.5 * 11.5 * 6.5cm / 6.1 * 4.5 * 2.6inPackage Weight: 284g / 10.0ozPackage List:1 * Audio Receiver Converter1 * TYPE-C Cable1 * BT Antenna1 * Manual