It supports multiple Bluetooth decoding formats and LDAC high-definition decoding technology, accurately reproducing the full audio bandwidth and restoring music details transparently, enabling Bluetooth to have CD-level sound quality. QCC3084 Bluetooth 5.4 Supports LDAC ATPX-HD Supports computer USB, optical, coaxial, and Bluetooth input. Machine power Less than 5W Input interface:USB, Bluetooth, optical fiber, coaxial Output interface:RCA output, 3.5mm headphone jack Power supply mode:The TYPE-C interface allows for input to a computer using a 5V power supply from a mobile phone charger, eliminating the need for an external power source. signal-to-noise ratio:>127dB Distortion rate:0.0001% Input sample rate Fiber optic coaxial: 44.1-192kHz DSD 64 Bluetooth/USB: 24bit/96k Bluetooth protocol:LDAC/APTX-HD/APTX/SBC/AAC, etc (The product printed words may vary depending on the batch, but this does not affect use) Color: Black Material: Aluminum Alloy Package Contents: 1*Decoder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.