The CMF Speaker S is CMF by Nothing’s first portable speaker, shaped like a small milk carton and built to be customized: its front panel and control knob swap out, and Nothing even publishes files to 3D-print your own. Inside, a custom 45 mm full-range driver with two passive radiators delivers 10 W RMS across 70 Hz–20 kHz. Bluetooth 6.0, NFC tap-to-pair, USB-C lossless audio, Auracast party pairing and an IP68 rating round out a spec sheet that runs up to 18 hours per charge.
Key specs
| Driver | 45 mm full-range + 2 passive radiators |
|---|---|
| Output | 10 W RMS |
| Battery | Up to 18 hours |
| Bluetooth | 6.0 with NFC pairing |
| Water resistance | IP68 (1.5 m, 30 min) |
| Frequency response | 70 Hz–20 kHz |
| Battery capacity | 2,600 mAh |
| Dimensions | 130.5 × 85 × 44 mm |
| Weight | 334 g |
Pros
- Milk carton design with swappable, 3D-printable panels
- IP68 sealing and up to 18 hours of playback
- Bluetooth 6.0, NFC, USB-C lossless audio and Auracast
Cons
- 10 W is personal-listening power, not room-filling
- Stereo pairing needs a second Speaker S
Best for: Desk and travel listening with personality — small footprint, long battery and a design you can restyle.
Skip if: You need room-filling volume from a single speaker.
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