Sony MDR-ZX550BN Wireless Headphones 은 2017년 8월 22일에 처음 출시되었습니다. 이 Sony 헤드폰 버전은 블루투스 3을 지원합니다. 배터리 수명은 29시간으로 긴 활동 시간 동안 편안하게 사용할 수 있습니다.
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