7.1Battery6.6
Why is AH-C840NCW better than KDT3000?
- Battery life10 h vs 8.5 h+18%
Why is KDT3000 better than AH-C840NCW?
- Charging time2 h vs 1.5 h+33%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | Open-ear |
| Ear cup design | Closed-back | Open-back |
| Driver type | Dynamic | — |
| Driver size | 12 mm | — |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | Yes | — |
| Transparency / ambient mode | Yes | — |
| Battery & charging | ||
| Battery life | 10 h | 8.5 h |
| Battery life with ANC | 7 h | — |
| Charging time | 2 h | 1.5 h |
| Wireless charging (case) | Yes | — |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.4 |
| Bluetooth codecs | LC3, AAC, SBC | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| Multipoint (two devices) | Yes | Yes |
| LE Audio | Yes | — |
| USB-C | Yes | Yes |
| Design & build | ||
| Earbud weight (each) | 5 g | — |
| Protection rating | IPX4 | IPX4 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |








