Why is K2 better than TAH5209?
K2 has no measurable advantages in this pair.
Why is TAH5209 better than K2?
- Battery life40 h vs 65 h+62%
- Charging time2.5 h vs 2 h+25%
Specifications
Side by side
| Sound | ||
| Fit | — | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 40 mm | 40 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Impedance | — | 32 Ω |
| Sensitivity | — | 92 dB |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | 40 h | 65 h |
| Battery capacity | — | 500 mAh |
| Charging time | 2.5 h | 2 h |
| Quick charge (claimed) | — | 5 min → 3 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| 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 | — |
| Smart & streaming | ||
| Companion app | — | Yes |
