vs
6.2Sound6.8
4.8Noise control & calls7.2
8.9Battery4.4
2.7Build & features3.6
Why is ATH-CKS50TW better than ED-NBDS?
- Battery life20 h vs 6 h3.3×
- Lowest frequency5 Hz vs 20 Hz4×
Why is ED-NBDS better than ATH-CKS50TW?
- Active noise cancellingNo · ATH-CKS50TW: Yes
- Charging time3 h vs 1 h3×
- Highest frequency20,000 Hz vs 40,000 Hz2×
- Earbud weight (each)8 g vs 6 g+33%
- Driver size9 mm vs 10 mm+11%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | Hybrid |
| Driver size | 9 mm | 10 mm |
| Lowest frequency | 5 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 40,000 Hz |
| Impedance | 20 Ω | 24 Ω |
| Sensitivity | 110 dB | 92 dB |
| Hi-Res Audio | Yes | Yes |
| Adjustable equaliser | Yes | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | Yes | Yes |
| Battery & charging | ||
| Battery life | 20 h | 6 h |
| Total with charging case | 50 h | — |
| Charging time | 3 h | 1 h |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.2 | 5.2 |
| Bluetooth codecs | aptX Adaptive, aptX, AAC, SBC | aptX Adaptive, aptX, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | Yes |
| aptX | Yes | Yes |
| LDAC | No | No |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 8 g | 6 g |
| Protection rating | IPX4 | IP54 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Dust protection (IP) | — | 5 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | Yes | Yes |
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