Official replacement (OEM)
✓ Verified fit
Sennheiser
HD 4.20S/4.30I/G/350BT EARPADS
Part 507203
Details & evidence ↓
Sennheiser · exact model result
Sennheiser HD 4.40 BT
Replacement earpads
1 verified fit1 official (OEM)
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Fit details and supporting evidence.
Sennheiser
HD 4.20S/4.30I/G/350BT EARPADS
Official replacement (OEM)Very high confidence
- Part number
- 507203
- Sound / ANC
- Sennheiser says the genuine pads are intended to restore the original acoustic seal; no HD 4.40 BT-specific acoustic tuning details were found.
Evidence (2)
-
global.sennheiser-hearing.com
Sennheiser’s genuine spare-parts listing explicitly includes HD 4.40 in its compatibility list and identifies part 507203.
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spares.sennheiser-hearing.com
Sennheiser’s exact HD 4.40 BT spare-parts page lists “HD 4.20/4.30/4.40 EARPADS,” article number 507203.