Why is BTH12 better than KH-KZ30?
- Battery life40 h vs 35 h+14%
- Driver size40 mm vs 30 mm+33%
Why is KH-KZ30 better than BTH12?
- Bluetooth version5 vs 5.2+4%
Specifications
Side by side
| Sound | ||
| Driver type | — | Dynamic |
| Driver size | 40 mm | 30 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Noise control | ||
| Active noise cancelling | No | — |
| Battery & charging | ||
| Battery life | 40 h | 35 h |
| Battery capacity | 800 mAh | — |
| Charging time | — | 3 h |
| Quick charge (claimed) | 10 min → 4 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.2 |
| Bluetooth codecs | — | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | — | 157 g |
| Foldable | — | Yes |
| Features | ||
| Hands-free calls | Yes | Yes |
