Sennheiser (Sonova Consumer Hearing GmbH) · Official replacement (OEM)
HD 250BT REPLACEMENT EARPADS
Verified as compatible with 1 headphone model.
Verified compatible headphones
Evidence
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assets.sennheiser.com
The official HD 250BT manual describes removing the pad, orienting the replacement seam downward, and fitting it into the ear-cup notch. It supports the installation instructions, though it does not identify part number 509179.
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global.sennheiser-hearing.com
Sennheiser’s official product page identifies the item as HD 250BT replacement earpads, gives article number 509179, and states it is one pair for HD 250BT.
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us.sennheiser-hearing.com
Sennheiser’s U.S. compatibility collection is for HD 250BT and lists HD 250 BT Ear Pads; availability is not relevant to fit.