vs
5.5Battery5.4
Why is AONIC 215 Gen 2 SE21DYBK+TW2-A better than Liberty Air 2 Pro?
- Battery life8 h vs 7 h+14%
- aptXYes · Liberty Air 2 Pro: No
Why is Liberty Air 2 Pro better than AONIC 215 Gen 2 SE21DYBK+TW2-A?
- Charging time2 h vs 1 h2×
- Highest frequency17,500 Hz vs 20,000 Hz+14%
- Lowest frequency22 Hz vs 20 Hz+10%
Specifications
Side by side
| Sound | ||
| Fit | — | In-ear |
| Ear cup design | — | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 6 mm |
| Number of drivers | — | 1 |
| Lowest frequency | 22 Hz | 20 Hz |
| Highest frequency | 17,500 Hz | 20,000 Hz |
| Impedance | 17 Ω | — |
| Sensitivity | 107 dB | — |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | Yes | — |
| Noise reduction for calls | — | Yes |
| Battery & charging | ||
| Battery life | 8 h | 7 h |
| Charging time | 2 h | 1 h |
| Quick charge (claimed) | — | 15 min → 3 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5 |
| Bluetooth codecs | aptX, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | Yes | No |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 21 g | — |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | — |
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