vs
5.6Noise control & calls4.6
5.2Battery2.6
Why is CMF Buds 2a better than Crossky C30 T33?
- Active noise cancellingYes · Crossky C30 T33: No
- Battery life8 h vs 5 h+60%
- Total with charging case36 h vs 25 h+42%
- Driver size12.4 mm vs 10.8 mm+15%
Why is Crossky C30 T33 better than CMF Buds 2a?
Crossky C30 T33 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | — | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 12.4 mm | 10.8 mm |
| Number of drivers | — | 2 |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | — |
| Microphones | — | 4 |
| Noise reduction for calls | Yes | Yes |
| Battery & charging | ||
| Battery life | 8 h | 5 h |
| Battery life with ANC | 5 h | — |
| Total with charging case | 36 h | 25 h |
| Battery capacity | — | 32 mAh |
| Charging time | — | 2 h |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.4 |
| Bluetooth codecs | AAC, SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | — | Yes |
| Low-latency game mode | Yes | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Companion app | — | Yes |
| Design & build | ||
| Earbud weight (each) | — | 5 g |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
