Why is K1 better than BT210?
K1 has no measurable advantages in this pair.
Why is BT210 better than K1?
BT210 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Driver size | 40 mm | — |
| Number of drivers | 1 | — |
| Impedance | 32 Ω | 210 Ω |
| Sensitivity | 94 dB | — |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | — | 20 h |
| Battery capacity | — | 210 mAh |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.3 |
| 3.5 mm jack / AUX | Yes | Yes |
| Features | ||
| Hands-free calls | Yes | Yes |




