my first pair of bluetooth headphones! bought to use for zoom calls and music on the go. satisfied with my purchase - bstock but great. very good bluetooth connection. overall, I liked the sound better than sony xm4 or bose 700. clamp force a bit grippy but I don't mind. battery life is admittedly lower than its competitors, but I also don't mind as I'm not much these days.
Great workmanship and solid with geniue leather headband. Typical Sennheiser sound. There is 2 flaws, one is no ON / PFF switch and another issue is the attachable cable that is with micro lock. The design is strange with 3.5mm plug convert to 2.5mm headphone end. If new user doesn't notice such micro lock then hard to know how to plug-in correctly and leave it just simple soundless. I used an hour to search online since the manual doesn't mentioned clearly. Suggested to highlight the micro lock. Overall, it should be the best audio quality for bluetooth headphone in the market and not hesitate to recommend to serious music lovers.