Main Facts: Redefining Portable Audio with Personality and Modular Design
The portable Bluetooth speaker market is arguably one of the most saturated and diverse sectors in modern consumer electronics. Spanning every conceivable shape, size, material, color palette, and feature set, manufacturers continually struggle to capture consumer attention in a sea of uniformity. Into this crowded space steps CMF—a sub-brand known for its distinct design language and focus on value—with what is easily one of the most intriguing audio releases of the year: the CMF Speaker S.
Priced attractively at just €69, the CMF Speaker S is a compact, highly portable wireless speaker that punches well above its weight class in terms of aesthetic charm and build quality, even if it has a few acoustic compromises.
Positioned as the smaller sibling to the €114 CMF Speaker M (which delivers twice the power), the Speaker S is built around a 45mm driver putting out 10W of sound across a frequency range of 70Hz to 20kHz. To compensate for its diminutive frame, it incorporates dual passive radiators on either side to simulate deeper bass. Yet, specification sheets do little justice to its standout visual identity. Openly inspired by the humble milk carton—a design quirk quickly spotted by eagle-eyed reviewers—the Speaker S breaks away from the cylindrical or rectangular monoliths that dominate the market.

Available in four striking colors—White, Red, Black, and Cyan—the device introduces a playful level of physical interaction through custom rotating control knobs. Furthermore, it features a semi-modular design, allowing users to unclip the rear lock button and swap out components if they own multiple units. Combined with an impressive IP68 rating for full dust and water immersion resistance, the CMF Speaker S presents a compelling value proposition for casual listeners, design enthusiasts, and outdoor adventurers alike.
Chronology: From Concept to Global Rollout
The journey of the CMF Speaker S reflects the broader strategy of its parent ecosystem, which prioritizes industrial design, user engagement, and tactile interaction over sterile minimalism.
- Design Conceptualization & Inspiration: CMF’s design teams drew unconventional inspiration from everyday industrial packaging, specifically targeting the geometric silhouette of a milk carton. This unconventional starting point dictated the speaker’s upright posture and angular housing.
- Feature Integration & Modular R&D: Building upon CMF’s growing tradition of multi-function physical controls (such as those seen on the CMF Headphone Pro), engineers designed a smart, clickable rotating knob to handle volume, playback, and track navigation. Concurrently, a modular locking mechanism was engineered into the rear chassis to facilitate part-swapping between units.
- The Announcement and Market Positioning: CMF introduced the speaker alongside its larger counterpart, the Speaker M. While the Speaker M targeted users seeking higher power outputs at a higher price point (€114), the Speaker S was pinned at an aggressive €69 entry point.
- Global Availability Launch: Following its reveal, CMF initiated a broad international rollout, making the Speaker S available for direct purchase across multiple key regions, including Europe, the Asia-Pacific market, the Middle East, and North America. Early hands-on demonstrations—including showcases across tech media platforms like TikTok—helped generate viral interest prior to retail delivery.
Supporting Data: Specifications, Acoustics, and Ergonomics
To fully understand where the CMF Speaker S excels and where it makes concessions, one must examine its hardware and acoustic architecture in detail.

Hardware and Physical Specifications
- Price: €69
- Power Output: 10W
- Driver Configuration: Single 45mm active driver paired with dual side-firing passive radiators.
- Frequency Response: 70Hz – 20kHz
- Durability: IP68 dust and water immersion resistance.
- Color Ways & Knob Variations:
- White: Features a lever-style rotary knob.
- Red: Features an X-shaped rotary knob.
- Black: Standard industrial styling.
- Cyan: Features a ring-shaped rotary knob.
- Packaging: Minimalist retail box containing strictly the speaker itself (no charging bricks or auxiliary cables included).
Acoustic Performance Analysis
Acoustically, the 10W CMF Speaker S delivers a surprisingly expansive soundstage that defies its physical dimensions. However, audio enthusiasts must temper their expectations regarding low-end frequency reproduction.
- Midrange and Vocals: The speaker shines brightest in the midrange. Vocals exhibit a solid, forward presence, and acoustic or orchestral instruments cut through the mix with impressive clarity.
- Bass Response: Due to the physical limitations of a compact enclosure, true sub-bass is lacking. While the dual passive radiators attempt to bridge the gap, the low-end lacks the tactile punch required to make heavy genres feel truly alive. CMF includes an "Ultra Bass" software enhancement mode, but real-world testing suggests it often muddying the overall sound profile, frequently detracting from the pristine clarity found in the mids and highs.
- Volume: Despite drawing only 10W, the speaker can push a significant amount of decibels, making it more than capable of filling a small room, office, or patio space with sound.
The Modular and Ergonomic Experience
The control knob is the crown jewel of the speaker’s physical interface. Rather than relying entirely on digital touch panels or endless app menus, CMF has leaned into haptic feedback. A single twist adjusts the volume; pressing it once toggles play/pause; pressing it sequentially navigates through tracks.
The modular aspect, while clever, sits in a unique grey area. By unclipping the rear lock button, users can swap out the front plastic covers or the knobs themselves. However, because CMF does not sell individual front plates or replacement knobs as standalone accessories, this feature is realistically only functional if a user owns two or more CMF Speaker S units and wishes to mix and match their color schemes.

Official Responses and Industry Reception
Reaction from the tech community and early reviewers has been overwhelmingly positive regarding the device’s aesthetics and pricing strategy, though tempered with realistic critiques of its acoustic boundaries.
CMF’s official design philosophy emphasizes that modern technology should not only perform tasks efficiently but should also evoke a sense of joy and personal expression. Company representatives have consistently highlighted that the brand aims to democratize good industrial design—bringing elements usually reserved for high-end, boutique lifestyle products down to accessible price points like the €69 mark.
Early consumer and press responses have validated this approach. Reviewers have praised CMF for refusing to build yet another generic black pill-shaped Bluetooth speaker. The milk-carton aesthetic has been widely lauded as a refreshing visual departure.

Regarding sound quality, industry consensus aligns with the sentiment that while the lack of deep bass is a notable compromise, it is an entirely acceptable trade-off for a device of this size, price, and durability rating. Reviewers have noted that expecting deep sub-bass from a sub-seventy-euro, pocket-friendly speaker defies the laws of physics, making the CMF Speaker S a triumph of engineering relative to its physical constraints.
Implications: What the CMF Speaker S Means for the Portable Audio Market
The introduction of the CMF Speaker S carries several significant implications for the broader portable audio landscape.
1. The Death of Boring Design
For years, budget and mid-range Bluetooth speakers have suffered from copycat syndrome—manufacturers churning out rubberized, cylindrical cylinders designed purely to survive a drop in the dirt, devoid of any real personality. The success and media attention garnered by the CMF Speaker S prove that consumers are hungry for design-forward hardware. By treating a tech accessory like a lifestyle object—injecting milk-carton geometry and custom tactile knobs—CMF is forcing competitors to rethink their visual strategies.

2. Normalizing High-End Durability at Low Price Points
An IP68 rating was once strictly the domain of flagship smartphones and premium, ruggedized outdoor gear costing upwards of €150 to €300. By bringing full dust and water immersion resistance down to a €69 price point, CMF is raising consumer expectations. Buyers will increasingly look at budget competitors and question why cheaper devices cut corners on basic environmental protections.
3. The Niche of Modular Tech
While the modular knob and faceplate swapping on the CMF Speaker S is arguably more of a novelty than a practical necessity for the average single-unit buyer, it points toward a larger industry trend. Consumers increasingly value personalization and the right to tinker or customize their gear. If CMF decides to expand this program by selling individual faceplates and accessories separately in the future, it could pioneer a new micro-economy of modular customization for audio gear.
4. A Reality Check on Physics vs. Marketing
Finally, the lukewarm reception of the "Ultra Bass" mode serves as an important industry reminder: software tuning cannot entirely rewrite acoustic physics. While digital signal processing (DSP) can push small drivers further, consumers and manufacturers alike must continue to balance expectations. The CMF Speaker S succeeds not because it pretends to be a massive subwoofer, but because it embraces its identity as a crisp, articulate, beautifully designed companion speaker for podcasts, acoustic tracks, and casual background melodies.

Conclusion
At €69, the CMF Speaker S is far more than just another piece of plastic audio gear; it is a statement piece. It proves that budget tech does not have to look cheap, and that personality, durability, and clever ergonomics can successfully compensate for minor acoustic limitations. For anyone seeking a portable speaker that doubles as a conversation starter—and one that won’t flinch at a splash of water or a tumble in the sand—the CMF Speaker S stands proudly in a class of its own.

