Optional Size: 50MM, 55MM, 60MM, 65MM, 70MM, 75MM, 80MM, 85MM, 90MM, 95MM, 100MM, 105MM. Ear foam will improve bass performance of your headphones. The ear pad is round, the appearance is about 5CM 5.5CM 6CM 6.5CM 7CM 7.5CM 8CM 8.5CM 9CM 9.5CM 10CM 10.5CM.
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