Logitech · Official replacement (OEM)
Zone 300 Series Replaceable Earpads
Verified as compatible with 1 headphone model.
Verified compatible headphones
Evidence
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hub.sync.logitech.com
Logitech’s parts listing explicitly names Zone 305 and lists black part 989-001201, off-white part 989-001206, and rose part 989-001203.
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logitech.com
Logitech’s product details specify the earpads are compatible with Zone 300, Zone 301, and Zone 305 only; the listed part number is 989-001201.