Official-source product profile · L1

Sennheiser CX 80 U

CX 80 U wired USB-C earphones with an inline microphone and remote.

Evidence checked: 2026-10-11. Manufacturer/distributor documentation; no independent SoundPath Lab test.

What the documentation establishes

• USB-C digital host connection; separate identity from analogue 3.5mm CX 80/CX 80S.
• 9.7mm dynamic driver; fixed 1.2m cable and three ear-tip sizes.
• Manufacturer THD <0.5% at 1kHz/100dB SPL; USB format and host compatibility remain unverified.

Best for

A compatible USB-C host needing a simple wired headset without battery charging.

Avoid if

You need Bluetooth, ANC, detachable cable or guaranteed console compatibility.

Support and purchase checks

Confirm the complete regional model, required cables and external components, current manual/firmware, local warranty and actual dispatch with the official channel. App and streaming-service support depends on current versions; paid services may require subscriptions. A planned release or an order button does not prove local stock.

Keep an existing system that already meets these connection and use requirements. No measured sound-quality upgrade, reliability score or automatic purchase recommendation is assigned.

Primary sources

• https://eu.sennheiser-hearing.com/fr-fr/collections/all/products/cx-80-u — checked 2026-10-11
• https://eu.sennheiser-hearing.com/pt-be/collections/wireless/products/cx-80-u — checked 2026-10-11

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