Why is TAH4209 better than Q21i?
- Battery capacity600 mAh vs 185 mAh3.2×
- Bluetooth version5.3 vs 5+6%
Why is Q21i better than TAH4209?
- Active noise cancellingNo · TAH4209: Yes
- Battery life55 h vs 60 h+9%
Specifications
Side by side
| Sound | ||
| Fit | On-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 40 mm |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | 32 Ω | 16 Ω |
| Sensitivity | 112 dB | — |
| Hi-Res Audio | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | 55 h | 60 h |
| Battery life with ANC | — | 40 h |
| Battery capacity | 600 mAh | 185 mAh |
| Charging time | 2 h | — |
| Quick charge (claimed) | — | 5 min → 4 h |
| Fast charging support | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5 |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| 3.5 mm jack / AUX | — | Yes |
| Smart & streaming | ||
| Voice assistant | Google Assistant, Siri | — |
| Companion app | — | Yes |
| Design & build | ||
| Weight | 160 g | — |
| Colours | — | Black |
| Features | ||
| Hands-free calls | Yes | — |
