vs
2.1Build & features3.0
Why is ATH-CKS660XBT better than B1?
- Battery life20 h vs 6 h3.3×
- Weight26 g vs 35 g+33%
Why is B1 better than ATH-CKS660XBT?
- Water resistance (IPx)IPx2 vs IPx42×
- Bluetooth version5 vs 5.2+4%
Specifications
Side by side
| Sound | ||
| Fit | Neckband | Bone conduction |
| Driver type | Dynamic | — |
| Driver size | 9.8 mm | — |
| Lowest frequency | 5 Hz | — |
| Highest frequency | 40,000 Hz | — |
| Impedance | 16 Ω | 8 Ω |
| Sensitivity | 104 dB | — |
| Battery & charging | ||
| Battery life | 20 h | 6 h |
| Charging time | 2 h | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.2 |
| Bluetooth codecs | AAC, SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | — |
| Design & build | ||
| Weight | 26 g | 35 g |
| Protection rating | IPX2 | IPX4 |
| Water resistance (IPx) | IPx2 | IPx4 |
| Features | ||
| Hands-free calls | Yes | Yes |
