vs
5.8Noise control & calls7.2
8.6Battery8.9
8.4Build & features3.9
Why is Liberty Buds 2 better than GLASS Core KH-CRZ90T?
- Water resistance (IPx)IPx5 vs IPx4+25%
- Earbud weight (each)4.7 g vs 5.8 g+24%
Why is GLASS Core KH-CRZ90T better than Liberty Buds 2?
- Battery life12 h vs 17 h+42%
- Driver size9.2 mm vs 10 mm+9%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | — |
| Driver size | 9.2 mm | 10 mm |
| Spatial / 3D audio | Yes | — |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Adaptive ANC | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Microphones | 6 | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 12 h | 17 h |
| Battery life with ANC | 7 h | — |
| Total with charging case | 46 h | — |
| Charging time | — | 2 h |
| Quick charge (claimed) | 10 min → 4 h | — |
| Fast charging support | Yes | — |
| Wireless charging (case) | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6.1 | 6 |
| Bluetooth codecs | LDAC | LDAC, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | No | No |
| LDAC | Yes | Yes |
| Multipoint (two devices) | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 4.7 g | 5.8 g |
| Protection rating | IP55 | IPX4 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Dust protection (IP) | 5 | — |
| Colours | Silver White, Glossy Black | — |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
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