1. Bluetooth version: BT5.4
2. Power input: 5V
3. Mode: coaxial/optical fiber/U disk/Bluetooth
4. Support music format: WAV/FLAC/MP3/APE/MAV
5. Output interface: 3.5 mm AUX
6. Input interface: USB U disk input / coaxial input / optical input
7. Function: wireless audio reception/digital audio conversion
8. Effective working radius: 15m, remote control distance: 8-10m
9. DAC mode: for TV/computer/projector/amplifier/TV box
10. Receiver mode: for wired speakers/home speakers/amplifier/headphones/car kit
11. Remote control power supply mode: button battery
12. Packing list: host x1, power supply cable x1, RCA cable x1, 3.5 audio cable x1, DAC conversion cable x1, remote control x1, manual x1

Functional features:
1. Bluetooth audio receiver, digital-to-analog audio converter, USB flash drive playback adapter
2. Wired to wireless, turn wired speakers into bluetooth speakers, rich in features
3. Support USB flash disk lossless decoding playback, no need to drive, support volume adjustment
4. HD sound quality, lossless output, low latency, high fidelity, no noise, restore CD-level HIFI sound quality, stable performance
5. 15 meters barrier-free transmission, signal stability, Bluetooth 5.4 mode transmission is clearer, remote control, easy to operate