1. Input interface: optical fiber/coaxial/AUX/USB/TF/Bluetooth 
2. Output interface: 3.5mm audio interface 
3. Sampling rate support: 33/44.1748/96Khz, 16/24bit 
4. Bluetooth protocol support: A2DP/ AVRCP/AHFP/HSP 
5. Frequency response: 20Hz-24Kh 
6. Operation mode: button switching, remote control 
7. USB/TF playback support: WMA/WAV/FLAC/APE/MP3, etc. 
8. Bluetooth decoding: SBC 
9. Bluetooth receiver version: V5.3 
10. Bluetooth receiver distance: within 30m 
11. Supported equipment: mobile phone/computer/TV/projector/amplifier/set-top box/PS4, etc. 
12. Effective modes: Bass, Normal, Treble 
13. Packing list: host, manual, 1AV cable x2, 2AV cable x2, 3.5 audio cable, 1m fiber optic cable, remote control, power supply cable