Cross-Border Over-Ear Bluetooth Wireless Microphone Gaming HeadphonesCross border shipping and diverse usage conditions (e. g., humid climates in Southeast Asia, dry winters in North America) require robust build quality: Materials : Earcups and headbands often use ABS plastic (impact resistant) and protein leather (skin friendly, sweat resistant); some high end models add metal hinges to prevent breakage from frequent folding. Protection ratings : Most have an IPX4 waterproof sweatproof rating, resisting splashes from