vs
2.8Build & features9.0
Why is Echo Buds (2nd Gen) better than KH-CRZ40T?
Echo Buds (2nd Gen) has no measurable advantages in this pair.
Why is KH-CRZ40T better than Echo Buds (2nd Gen)?
- Battery life5 h vs 7.5 h+50%
- Water resistance (IPx)IPx4 vs IPx5+25%
- Earbud weight (each)7.6 g vs 4.1 g+85%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | — | Closed-back |
| Driver size | — | 6 mm |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Noise control | ||
| Active noise cancelling | No | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 5 h | 7.5 h |
| Charging time | — | 2 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5 | 5.1 |
| Bluetooth codecs | — | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Smart & streaming | ||
| Voice assistant | Alexa | — |
| Design & build | ||
| Earbud weight (each) | 7.6 g | 4.1 g |
| Protection rating | IPX4 | IPX5 |
| Water resistance (IPx) | IPx4 | IPx5 |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |









