Sennheiser CX 80 U review

The CX 80 U is Sennheiser's answer for phones without a headphone jack. The company describes a wired USB-C connection that carries uncompressed audio with no pairing or charging, an inline remote with microphone for calls and music, and a lightweight in-ear design with three ear tip sizes, size M fitted out of the box, for passive noise isolation. Sennheiser is one of the few brands here to publish real numbers: a frequency response of 17 to 20,000 Hz at -10 dB and a weight of about 14.3 g. It describes the tuning as balanced, with crisp highs, natural mids and controlled bass. What we could not do is confirm a US price, because Sennheiser's US store redirected our request, so treat value as provisional until you check the live price. There is also no sweat or water rating listed. If you care more about tuning than about paying the absolute minimum, this is the step-up pick.

Who it is for

listeners who want a name audio brand's tuning

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• Wired USB-C plug-and-play connection with no pairing or charging
• Inline remote and microphone for calls and music
• Three ear tip sizes for a secure fit with passive noise isolation
• Frequency response of 17 to 20,000 Hz (-10 dB)
• Weight of about 14.3 g

Strengths and weaknesses

• Strength: Sennheiser publishes a frequency response and weight, unlike most budget pairs
• Strength: Lightest weight listed among models here that publish one
• Strength: Sealed fit with three tip sizes
• Weakness: We could not confirm a US price from this location
• Weakness: No water resistance rating on the product page
• Weakness: No impedance or sensitivity figures on the product page

Key facts

• Connection: USB-C, wired
• Frequency response: 17 to 20,000 Hz (-10 dB)
• Weight: About 14.3 g
• Controls: Inline remote and microphone
• Ear tips: Three sizes (M fitted)

Where it ranks

Sennheiser CX 80 U is No. 4 in our Best USB-C Earbuds verdict.