vs
4.0Sound4.4
6.8Battery9.5
9.3Connectivity7.3
9.4Build & features8.3
Why is CMF Speaker M better than Session 540?
- Output power35 W vs 10 W3.5×
- Water resistance (IPx)IPx8 vs IPx7+14%
- Bluetooth version6 vs 5.3+13%
Why is Session 540 better than CMF Speaker M?
- Battery life18 h vs 40 h2.2×
- Weight602 g vs 320 g+88%
- Lowest frequency60 Hz vs 20 Hz3×
Specifications
Side by side
| Sound | ||
| Driver size | — | 49.5 mm |
| Output power | 35 W | 10 W |
| Speaker channels | 1.0 | — |
| Channel count | 1 | — |
| Lowest frequency | 60 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Adjustable equaliser | Yes | Yes |
| Stereo | No | — |
| Battery & charging | ||
| Battery life | 18 h | 40 h |
| Battery capacity | 4,900 mAh | — |
| Charging time | 3 h | — |
| Quick charge (claimed) | 10 min → 1 h | 10 min → 3.5 h |
| Fast charging support | Yes | Yes |
| Mains powered | No | — |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6 | 5.3 |
| Bluetooth codecs | LC3, AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | Yes | Yes |
| LE Audio | Yes | Yes |
| Auracast | Yes | Yes |
| NFC pairing | Yes | — |
| USB-C | Yes | — |
| USB audio | Yes | — |
| Smart & streaming | ||
| Companion app | Yes | Yes |
| Design & build | ||
| Weight | 602 g | 320 g |
| Width | 85 mm | — |
| Height | 220 mm | — |
| Depth | 54 mm | — |
| Protection rating | IP68 | IP67 |
| Water resistance (IPx) | IPx8 | IPx7 |
| Dust protection (IP) | 6 | 6 |
| Colours | — | Leopard, Plasma, Primer, True Black, Cement |
| Features | ||
| Party / stereo pairing | Yes | Yes |
