Sennheiser

CX 300S

The Sennheiser CX 300S delivers balanced sound, comfort, and good value despite a plasticky feel and basic controls.

Summed up from 7 published reviews

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What reviewers like

Balanced sound with clear mids and detailed highs 1 2 3 4
Comfortable ergonomic fit with excellent noise isolation 1 2 3 4
Solid build quality and durable flat cable 1 2 3 4
Inline microphone provides clear call quality 1 2 3 5

What they don't

Plasticky appearance feels cheap to some users 1 3 5 7
Limited single-button remote lacks volume control 2 3 5 7
Bass response varies: boomy for some, lacking for others 1 3 4 6
Durability concerns include wire fraying and tip detachment 5 7

Best for

Budget buyers seeking balanced sound, comfort, and inline mic.

Skip it if

Users wanting premium materials, volume controls, or huge bass.

Where it fits

use: Music
fit: In-ear
connection: Wired
noise cancelling: Not needed

Specs

Fit: In-ear
Connection: Wired
Noise cancelling: No
Best for: Music
Microphone: Built-in mic

Also worth a look

Questions

Is the Sennheiser CX 300S worth it?

The Sennheiser CX 300S delivers balanced sound, comfort, and good value despite a plasticky feel and basic controls.

What do reviewers like about the Sennheiser CX 300S?

Balanced sound with clear mids and detailed highs. Comfortable ergonomic fit with excellent noise isolation. Solid build quality and durable flat cable. Inline microphone provides clear call quality.

What are the downsides of the Sennheiser CX 300S?

Plasticky appearance feels cheap to some users. Limited single-button remote lacks volume control. Bass response varies: boomy for some, lacking for others. Durability concerns include wire fraying and tip detachment.

Who should buy the Sennheiser CX 300S?

Budget buyers seeking balanced sound, comfort, and inline mic. Skip it if users wanting premium materials, volume controls, or huge bass.

Sources

We don't test products ourselves. This page sums up 7 published reviews, read on October 23, 2026; each point above links to the reviews that make it.