3.8Noise control & calls7.8
Why is KPH40 Utility better than ULT Wear?
- Highest frequency25,000 Hz vs 20,000 Hz+25%
Why is ULT Wear better than KPH40 Utility?
- Active noise cancellingNo · KPH40 Utility: Yes
- Lowest frequency15 Hz vs 5 Hz3×
Specifications
Side by side
| Sound | ||
| Fit | On-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | — | 40 mm |
| Lowest frequency | 15 Hz | 5 Hz |
| Highest frequency | 25,000 Hz | 20,000 Hz |
| Impedance | 60 Ω | 32 Ω |
| Sensitivity | 101 dB | 110 dB |
| Adjustable equaliser | — | Yes |
| Noise control | ||
| Active noise cancelling | No | Yes |
| Transparency / ambient mode | — | Yes |
| Battery & charging | ||
| Battery life | — | 50 h |
| Battery life with ANC | — | 30 h |
| Charging time | — | 3.5 h |
| Connectivity | ||
| Wireless | No | Yes |
| Bluetooth version | — | 5.2 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | — | Yes |
| USB-C | — | Yes |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | — | 255 g |
| Foldable | — | Yes |
| Features | ||
| Touch controls | — | Yes |
| Hands-free calls | — | Yes |
