Why is BK92 better than Air 2?
- Battery capacity200 mAh vs 40 mAh5×
Why is Air 2 better than BK92?
- Water resistance (IPx)IPx4 vs IPx7+75%
- Charging time4.5 h vs 1.5 h3×
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Driver size | — | 10 mm |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | — |
| Microphones | — | 4 |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | — | 9 h |
| Total with charging case | — | 40 h |
| Battery capacity | 200 mAh | 40 mAh |
| Charging time | 4.5 h | 1.5 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | — | LDAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | Yes |
| aptX | — | No |
| LDAC | — | Yes |
| USB-C | Yes | Yes |
| Low-latency game mode | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Protection rating | IPX4 | IPX7 |
| Water resistance (IPx) | IPx4 | IPx7 |
| Colours | White, Blue | — |
| Features | ||
| Touch controls | — | Yes |









