vs
9.0Battery9.0
3.0Build & features2.1
Why is ATH-CKS330XBT better than ATH-CKS660XBT?
- Weight24 g vs 26 g+10%
Why is ATH-CKS660XBT better than ATH-CKS330XBT?
- Driver size5.8 mm vs 9.8 mm+69%
- Highest frequency30,000 Hz vs 40,000 Hz+33%
Specifications
Side by side
| Sound | ||
| Fit | Neckband | Neckband |
| Driver type | Dynamic | Dynamic |
| Driver size | 5.8 mm | 9.8 mm |
| Lowest frequency | 5 Hz | 5 Hz |
| Highest frequency | 30,000 Hz | 40,000 Hz |
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 98 dB | 104 dB |
| Battery & charging | ||
| Battery life | 20 h | 20 h |
| Charging time | 2 h | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5 |
| Bluetooth codecs | AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| USB-C | Yes | Yes |
| Design & build | ||
| Weight | 24 g | 26 g |
| Protection rating | IPX2 | IPX2 |
| Water resistance (IPx) | IPx2 | IPx2 |
| Features | ||
| Hands-free calls | Yes | Yes |








