Specifications:
Bluetooth version: 5.0
Bluetooth range: Up to 32 ft (10 m)
Speaker size: 40mm
Frequency response: 20Hz - 20kHz
Impedance: 25Ω
Efficiency: 114±3dB
Battery capacity: 1000mA
Radio type: Omnidirectional microphone
Packaging is top notch, inside one gets a really good-looking hard case and the units with adapters and cables. Build quality is very good these almost look like the JBL Tour one. The features are implemented well with the ANC working better than I was expecting giving the big guys a run for the money. Connectivity is very stable. Calls sound clear and without interference. Notable features are The Supsoo B131’s advanced Hybrid ANC and Transparency Mode with 80-hour long battery life.
Sound:
The Supsoo offers a fun yet smooth sounding signature more Harman curve, its well balanced and non-fatiguing for long listening with a slight elevation in Bass and loudness with ANC on. The Bass is well controlled and has good a good depth and speed. The Mids sound clear and have a pleasant tonality, highs are detailed but never harsh and don't overextend beyond what they should. Soundstage is wide and open, it has good placement and would be great for gaming.
Conclusion: I have used hundreds of warless headphones and I must say these are definitely coming with me a lot, I like the easy going signature I can listen all day and enjoy them.