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Sennheiser MOMENTUM True Wireless 2 (Black 508674)
Model: MOMENTUM True Wireless 2 (M3IETW2), Black 508674 · US configuration
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Assessment scenario: Sennheiser MOMENTUM True Wireless 2 Black M3IETW2 article 508674 is an earlier sealed-tip ANC model with Classic Audio AAC, IPX4 earbuds only and USB-C wired case charging. The maker specifies seven hours under ANC-off conditions and no ANC-on runtime; this is not the visitor’s inferred intent.
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Assessment scenario: Earlier sealed ANC with AAC and a wired IPX4-buds case
An assessment scenario for the earlier Black M3IETW2 with sealed tips, active ANC, Classic Audio AAC, IPX4 earbuds only and USB-C cable charging. Its seven-hour example is ANC-off, and no ANC-on duration is specified.
Explore this buying guide ↗Why consider this model?
- The Sennheiser U.S. product page and model sources identify the M3IETW2 family as an earlier true-wireless in-ear model with active noise cancellation; four silicone tip sizes support fit adjustment but cannot guarantee an individual seal.
- The manufacturer lists AAC as a Classic Audio codec, and its manual describes one connected audio source. The host must support AAC; eight saved pairings do not mean Multipoint.
- The exact-model FAQ documents USB-C wired case charging without wireless charging, IPX4 for earbuds only and no splash resistance for the case.
Tradeoffs to weigh
- The approximately seven-hour AAC example explicitly has ANC off and Transparent Hearing off at 50% volume with an iPhone within one metre and no customized EQ. No ANC-on runtime is documented, so a positive ANC-hour requirement is unsupported.
- Sennheiser labels the U.S. product end of life; this does not establish current seller stock or condition. Its FAQ says the internal batteries are not exchangeable, and its Black 508674 support page says non-warranty service is unavailable.
- A finish-specific image and original box list do not prove that a particular resale unit includes both working earbuds, the correct case, cable, all tip sizes, warranty or return rights.
Check these before ordering
- Match Black M3IETW2 article 508674; White article 508831 is a distinct finish-only U.S. configuration. Do not confuse this model with the unnumbered first-generation M3IETW or MTW3/MTW4/MTW5.
- Confirm the right and left earbuds pair with the matching M3IETW2 C case, and ask for an actual charge/playback demonstration because the battery cells cannot be exchanged.
- Ask whether the seller includes the USB-C-to-USB-A cable and XS/S/M/L silicone adapters, and verify written condition, return terms and any warranty or service promise.
- Keep the charging case dry, dry wet earbuds before docking, and do not use the seven-hour ANC-off claim as an ANC-on estimate.
Manufacturer information
- MOMENTUM True Wireless 2 U.S. product page | Sennheiser
- MOMENTUM True Wireless 2 U.S. product and variant record | Sennheiser
- M3IETW2 BLACK, article 508674, product support and spares | Sennheiser
- MOMENTUM True Wireless 2 instruction manual, version 11/20 A03 | Sennheiser
- MOMENTUM True Wireless 2 official product FAQ | Sennheiser
- MOMENTUM True Wireless 2 manual specification table | Sennheiser