vs
2.3Battery5.6
3.0Build & features6.7
Why is PI7 better than AONIC 215 Gen 2 SE21DYBK+TW2-A?
- Hi-res codec (LDAC / aptX HD / LHDC)Yes · AONIC 215 Gen 2 SE21DYBK+TW2-A: No
- Lowest frequency10 Hz vs 22 Hz2.2×
- Highest frequency20,000 Hz vs 17,500 Hz+14%
Why is AONIC 215 Gen 2 SE21DYBK+TW2-A better than PI7?
- Battery life4 h vs 8 h2×
- Charging time3 h vs 2 h+50%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | — |
| Driver type | Hybrid | Dynamic |
| Driver size | 9.2 mm | — |
| Lowest frequency | 10 Hz | 22 Hz |
| Highest frequency | 20,000 Hz | 17,500 Hz |
| Impedance | — | 17 Ω |
| Sensitivity | — | 107 dB |
| Hi-Res Audio | Yes | — |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 4 h | 8 h |
| Charging time | 3 h | 2 h |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5 |
| Bluetooth codecs | aptX Adaptive, aptX HD, aptX, AAC, SBC | aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | No |
| aptX | Yes | Yes |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Weight | — | 21 g |
| Earbud weight (each) | 7 g | — |
| Protection rating | IP54 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | 5 | — |
| Features | ||
| Hands-free calls | Yes | Yes |



