I don't recall exactly, but this is the third or fourth time that I've purchased these headphones. The first one went apart after about a year and a half, with one of the ears coming loose and breaking in two pieces. The second was misplaced in some manner. In summary, I am fairly happy with the headphones, and I think the sound they produce is satisfactory for the price. An outstanding option for the price (450), to be sure. There is no sign of the wire becoming frayed anywhere. Quality? Yep, normal. Sennheisers at the price of 1500 (there were older models) also malfunctioned. The acoustic quality that they possess does not allow them to claim that theirs is significantly superior. In general, I would suggest it.
Bose QuietComfort 25 Acoustic Noise Cancelling Headphones with 3.5mm Wired Connection for Apple Devices - Black
43 Review
Massdrop x Koss Porta Pro X On-Ear Headphones: π§ Noise-Cancelling Mic, Voice Assistant, Track Skip | Collapsible Midnight Blue
314 Review
Renewed Gloss Black Beats Solo 3 Wireless On-Ear Headphones - Enhanced Sound Quality
43 Review
π§ Experience Unmatched Audio Quality with Marshall Major 4 Bluetooth Headphones
104 Review
Black Huawei FreeBuds 3 Wireless Bluetooth Earbuds for Superior Sound
276 Review
Headphones Sennheiser CX 300-II, black
318 Review
π§ HUAWEI Freebuds 4i: Wireless Earbuds with Active Noise Cancelling & 10H Battery Life in Black
279 Review
Huawei Freebuds Pro MermaidTWS with Active Noise Cancellation - Silver Frost
299 Review