Why is HA-A30T better than KH-CRZ20T?
- Battery life9 h vs 7.5 h+20%
Why is KH-CRZ20T better than HA-A30T?
- Driver size6 mm vs 11 mm+83%
- Earbud weight (each)4.2 g vs 4.1 g+2%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Semi-in-ear (open) |
| Ear cup design | Semi-open | Open-back |
| Driver type | Dynamic | — |
| Driver size | 6 mm | 11 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Impedance | 16 Ω | — |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 9 h | 7.5 h |
| Battery life with ANC | 7 h | — |
| Total with charging case | 21 h | — |
| Charging time | 2 h | 2 h |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.1 |
| Bluetooth codecs | SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Design & build | ||
| Earbud weight (each) | 4.2 g | 4.1 g |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
