Why is KH-CRZ40T better than TW-E7B?
- Battery life7.5 h vs 6 h+25%
- Water resistance (IPx)IPx5 vs IPx4+25%
- Earbud weight (each)4.1 g vs 7.3 g+78%
Why is TW-E7B better than KH-CRZ40T?
- aptXNo · KH-CRZ40T: Yes
- Driver size6 mm vs 10 mm+67%
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | — | Dynamic |
| Driver size | 6 mm | 10 mm |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Hi-Res Audio | — | Yes |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | — | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | 7.5 h | 6 h |
| Total with charging case | — | 22 h |
| Charging time | 2 h | 2 h |
| Fast charging support | — | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.1 | 5.2 |
| Bluetooth codecs | SBC | aptX, AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | Yes |
| LDAC | No | No |
| USB-C | — | Yes |
| Smart & streaming | ||
| Voice assistant | — | Google Assistant, Siri |
| Design & build | ||
| Earbud weight (each) | 4.1 g | 7.3 g |
| Protection rating | IPX5 | IPX5 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
